急求！人教版八年级语文和物理暑假作业答案
\u516b\u5e74\u7ea7\u8bed\u6587\u7269\u7406\u6691\u5047\u4f5c\u4e1a\u7b54\u6848\u662f\u5565\uff1f\u9b3c\u77e5\u9053..\u51fa\u95ee\u9898\u7684\u77e5\u9053
\u82f1\u8bed
\u6ce8\u610f\uff1a\u2460\u201c,\u201d\u7528\u6765\u5206\u9694\u4e24\u4e2a\u5355\u8bcd
Part One
\u21601\u3001hurt 2\u3001queue 3\u3001quiet 4\u3001enjoyed 5\u3001arrive 6\u3001surprised 7\u3001laugh 8\u3001care
\u21611\u3001guess 2\u3001message 3\u3001show 4\u3001pick 5\u3001enjoy 6\u3001lasts 7\u3001like8\u3001get 9\u3001after 10\u3001go 11\u3001turn 12\u3001answer
\u21621-5dbbad 6-10daacd
\u21631\u3001was,rang 2\u3001enjoye 3\u3001will carry 4\u3001do,come 5\u3001did,come 6\u3001Don\u2019t go 7\u3001is blowing 8\u3001is skating 9\u3001is 10\u3001swimming
\u21641\u3001by bus 2\u3001may be 3\u3001How,the 4\u3001near 5\u3001likes living 6\u3001went out,walk 7\u3001can,do for 8\u3001the matter 9\u3001the cinema 10\u3001How,go 11\u3001another one 12\u3001Thanks,for 13\u3001better than 14\u3001call,up,give,a call 15\u3001arrive at
Part Two
\u2160\uff08\u7565\uff09
\u21611\u3001ir,or 2\u3001a,er 3\u3001ay,ai 4\u3001e,ea 5\u3001i,a
\u21621\u3001for 2\u3001at 3\u3001of
4\u3001on 5\u3001on
6\u3001with
7\u3001for
8\u3001in
9\u3001about
10\u3001from
11\u3001from,past
12\u3001about
\u2163A\u3001Can you come to
When
he will come
B\u3001Good morning
May I talk to Sue
Hello
How are you
I will go to the party
\u21641-5bdcac
6-10dbadc
11-14abcb
\u21651\u3001was ready
2\u3001the presents
3\u3001get back
4\u3001wait for
5\u3001at times
6\u3001do the cooking
7\u3001a pleasure
8\u3001enjoy
\u21661\u3001aren\u2019t,any
2\u3001Does,have
3\u3001What day is
4\u3001give,a help
\u21671\u3001She is a teacher.
2\u3001Yes,she does.
3\u3001White.
They wear white clothes when they are happy.
4\u3001We wear many kinds of clothes.
Part Three
\u2160ei æ ʌ ʌ ei ɔ: i: ɔ e \u03b8 \u03b5ə z
\u21611\u3001visitors
2\u3001heavily
3\u3001dangerous
4\u3001careful
5\u3001rainy
6\u3001better
7\u3001fewer
8\u3001really
9\u3001strong
10\u3001easily
11\u3001thiner less
12\u3001more
\u21621\u3001until
2\u3001If
3\u3001If
4\u3001after
5\u3001before
6\u3001before
7\u3001until
8\u3001If
\u21631-5bccaa
6-10cbdbb
\u21641\u3001turn right
2\u3001is ill in hospital
3\u3001you\u2019d better
4\u3001walk
5\u3001visiting
6\u3001of her backache
7\u3001nerest to
8\u3001to get ready for school
9\u3001I\u2019m feeling better
10\u3001before you enter the room
11\u3001if they can
12\u3001until the green light is on
\u21651\u3001\uff08\u7565)
2\u3001\u2460fruit shop\u2461I don\u2019t know
\u2462cinema\u2463school
\u2464I don\u2019t know\u2465bookshop
3\u3001The fruit shop
4\u3001Park Street
5\u3001Green Street
Part Four
\u21601\u3001purse
2\u3001wait
3\u3001still
4\u3001kitchen
5\u3001famous
6\u3001Italy
7\u3001waiter
\u2161A\u3001smelled,smelling
leant,learning
waked,waking
made,making
swam,swimming
began,begining
caught,catching
forgot,forgetting
hurt,hurting
grew,growing
sang,singing
read,reading
B\u3001learn,last
happy,pull
more,nearer
thin,rest
respect,never
danger,on
cool,different
answer,worse
least,busy
end,buy
\u21621\u3001What
2\u3001too
3\u3001instead
4\u3001anything unusual
5\u3001happily
6\u3001until
7\u3001best
8\u3001but,herself
9\u3001so,if
10\u3001yourself
11\u3001much
12\u3001have
13\u3001crying
14\u3001doesn\u2019t look
15\u3001do
16\u3001not to be
\u21631\u3001before,before
2\u3001on
3\u3001with
4\u3001instead
5\u3001be
6\u3001alone
7\u3001for
8\u3001longer
9\u3001herself
10\u3001but
11\u3001and
12\u3001of
\u21641\u3001looked around
2\u3001not any more
3\u3001am always happy
4\u3001take him to the doctor
5\u3001for helping me a lot
6\u3001to wear clothes by himself
7\u3001like monkey
8\u3001place of interest
9\u3001a cheaper one
10\u3001bring me some nice books
\u21651\u3001Why the monkey laughed?
2\u3001How many words can you find in this word puzzle?
3\u3001What will you buy her?
4\u3001Where did they visit first?
5\u3001Where are you going to work if it snows?
6\u3001How does the picture look?
7\u3001When do you have to leave?
\u21661-5ddcab
\u2167(\u7565)
Part Five
\u2160(\u7565)
\u21611\u3001guess
2\u3001wife
3\u3001son
4\u3001picture
5\u3001husband
6\u3001children
\u21621\u3001worried
2\u3001asleep
3\u3001laugh
4\u3001to see
5\u3001talking
6\u3001me
7\u3001yourself,healthy
8\u3001drawing
9\u3001to do
10\u3001cloudy
\u21631-5bcadc
6-10dddda
\u21641\u3001too,to
2\u3001enough to
3\u3001Wei Hua isn\u2019t here because she is ill.
4\u3001does not
5\u3001Yes,you can.
6\u3001How fast
7\u3001Will,or
\u21651\u3001but
2\u3001After
3\u3001so
4\u3001because
5\u3001before
6\u3001if
7\u3001when
8\u3001When
9\u3001and
10\u3001so
\u21661-5ccbab
6-10addab
\u21671-4cbac
\u2168(\u7565)
\u6570\u5b66
\u5de9\u56fa\u7ec3\u4e60
\u4e00\u30011b 2b 3c 4c 5c
\u4e8c\u30011\u3001x+y=0
2\u3001x/6+x
3\u30011
4\u30017
5\u3001x²-2y²
6\u30014
\u4e09\u30011\u30012-a
2\u30018/1-x\u516b\u6b21\u65b9
3\u3001\uff081\uff091/n-1/\uff08n+1\uff09 \uff082\uff09100/x\uff08x+100\uff09
4\u3001-54\u53c82/27
5\u30012/\uff08a+b\uff09 1
6\u3001m=0,1,2
7\u3001\uff081\uff09\u65e0\u89e3\uff08\u589e\u6839\u662f2\uff09\uff082\uff09x=a+b
8\u3001\u8bbe\u7532\u9700\u8981x\u5929 2\uff081/x + 1/x+3\uff09+\uff08x-2\uff09*1/\uff08x+3\uff09=1 \u89e3\u5f97x=6 x+3=9
\u7b54\uff1a\u7532\u9700\u89816\u5c0f\u65f6\uff0c\u4e59\u9700\u89819\u5c0f\u65f6
\u6311\u6218\u81ea\u6211
\u8bbe\u7b2c\u4e00\u6b21\u5355\u4ef7\u4e3aa\u5143\uff0c\u7b2c\u4e8c\u6b21\u4e3ab\u5143
\u7532\uff1a\uff08a+b\uff09/2\u5143
\u4e59\uff1a1600/\uff08800/a+800/b\uff09=2ab/\uff08a+b)\u5143
\u7532\u300b\u4e59 \u6240\u4ee5\u4e59\u5408\u7b97
\u66f4\u4e0a\u4e00\u5c42\u697c
\u4e00\u30011b 2c 3a 4c
\u4e8c\u30011\u30015/11\uff0cn/\uff082n+1\uff09 2\u30013 3\u3001n/(n+2) 4\u3001ab²+2b 5\u3001\u300b0 6\u3001
\uff08v-v0)/a 7\u3001x\u300b1\u4e14x\u22604/3 8\u3001mt/\uff08m+n)
\u4e09\u24601/\uff081/a+1/b+1/c) 1/6
\u2461-ab/ab=-1
\u2462ab-a+b=2
\u2463\u2474x=8 \u2475 x=\uff08a³+b³\uff09/\uff08ab-a²-b²\uff09
\u2464\uff084ab+1\uff09/\uff08a+b)²\uff08a-b\uff09
\u2465\u8bbe\u7532\u9700\u8981x\u5c0f\u65f6\uff0c\u4e59y\u5c0f\u65f6{6\uff081/x+1/y)=1
3\uff081/x+1/y)+9*1/y=1
\u89e3\u5f97\ufe5bx=9 \u7b54\uff1a\u7532\u9700\u89819\u5c0f\u65f6\uff0c\u4e59\u9700\u898118\u5c0f\u65f6\u3002
y=18
\u53cd\u6bd4\u4f8b\u51fd\u6570
\u5de9\u56fa\u7ec3\u4e60
\u4e00\u2460c\u2461a\u2462b\u2463b\u2464a
\u4e8c\u246040/a\u2461\u00b1\u6839\u53f72 \u4e8c\u3001\u56db\u2462\uff1c2 \u51cf\u5c0f\u2463y=-3/x\u2464y=-12/x
\u4e09\u2460\u2474\u628ay=1\u4ee3\u5165y=2/x\uff0c\u5f97x=2
\u2234A\uff082,1\uff09
\u8bbey=kx\uff0c\u628aA\uff082,1\uff09\u4ee3\u5165\u4e0a\u5f0f\uff0c\u5f97
1=2k
\u89e3\u5f97k=0.5
\u2234y=0.5x
\u2475\ufe5by=2/x
y=0.5x
\u89e3\u5f97\ufe5bx=-2
y=-1
\u2234B\uff08-2\uff0c-1\uff09
\u2461\u2474I=36R
\u2475R\uff1e3
\u2462\u24746/\u6839\u53f73 -6
\u2475y=-12/x
\u2476\u4e0d\u5728
\u2463\u2474t=10/v
\u2475\u662f
\u2476\u4e0d\u662f
\u751f\u6d3b\u4e2d\u7684\u6570\u5b66
\u2460y=3x 0\u2264x\u22648 y=48/x
\u246138
\u2462\u628ay=3\u4ee3\u5165y=48/x\uff0c\u5f97
3=48/x
\u89e3\u5f97x=16
\u223516\uff1e10
\u2234\u6d88\u6bd2\u6709\u6548
\u6311\u6218\u81ea\u6211
\u2460\u628aA\uff08-2,1\uff09\u4ee3\u5165y=m/x\uff0c\u5f97
1=m/-2
\u89e3\u5f97m=-2
\u2234y=-2/x
\u628a\uff081\uff0cn\uff09\u4ee3\u5165y=-2/x\uff0c\u5f97
n=-2/1=-2
\u2234B\uff081\uff0c-2\uff09
\u628aA(-2,1)\u548cB\uff081\uff0c-2\uff09\u4ee3\u5165y=kx+b\uff0c\u5f97
\ufe5b1=-2k+b
-2=k+b
\u89e3\u5f97\ufe5bk=-1
b=-1
\u2234y=-x-1
\u2461x\uff1e-2\u62160\uff1cx\uff1c1
\u66f4\u4e0a\u4e00\u5c42\u697c
\u4e00\u2460d\u2461d\u2462acd\uff08\u90fd\u5bf9\uff09
\u4e8c\u24600\u2461y1\uff1cy2\uff1cy3\u2462\uff080.5\uff0c-4\uff09
\u4e09\u2460\u628ay=-1\uff0cx=2\u4ee3\u5165y=m/x\u548cy=kx+2\uff0c\u5f97
\ufe5b-1=kx+2
y=2x+2
-1=m/x
y=m/2
\u89e3\u5f97\ufe5bx1=-6 \u6216\ufe5bx2=-2
y1=3 y2=1
k1=0.5 k2=-1.5
m1=6 m2=2
\u2234y=6/x\uff0cy=0.5x+2\u6216y=2/x\uff0cy=-1.5x+2
\u2461\u8bbeA(x,y)
\u2234xy=1
\u2235A\u4e0eB\u5173\u4e8e\u539f\u70b9\u5bf9\u79f0
\u2234B\uff08-x\uff0c-y\uff09
\u2234C\uff08x\uff0c-y\uff09
S\u22bfABC=1/2[x-\ufe59-x\ufe5a][y-\ufe59-y\ufe5a]
=1/2*2x*2y=2xy=2
\u2462\u8bbeA(x1,y1),B\uff08x2\uff0cy2\uff09
S\u22bfAOB=1/2*x1y1 S\u22bfCOD=1/2*x2y2
\u2235A\uff0cB\u5728y=1/x\u4e0a
\u2234x1y1=x2y2=1
\u2234S1=S2=1/2
\u52fe\u80a1\u5b9a\u7406
\u5de9\u56fa\u7ec3\u4e60
\u4e00\u2460b\u2461c\u2462b\u24634\u6b65\u2464b
\u4e8c\u2460\u6839\u53f75\u2461\u6839\u53f721\u2462\u6839\u53f73\u3001\u6839\u53f73\u2463\u4e24\u76f4\u7ebf\u5e73\u884c\uff0c\u5185\u9519\u89d2\u76f8\u7b49\u24642+2\u6839\u53f73
\u4e09\u2460\u2474S=1/2*5²-1/2*6*8=15.25
\u2475S=2\u6839\u53f7[14²-\uff0814-2\uff09²]=8\u6839\u53f721
\u2461\u2235AD²\uff0bBD²\uff1d169
AB²\uff1d169
\u2234AD²\ufe62BD²\uff1dAB²
\u22bfABD\u662f\u76f4\u89d2\u4e09\u89d2\u5f62
\u2234\u22bfACD\u662f\u76f4\u89d2\u4e09\u89d2\u5f62
CD\uff1dBC\ufe63BD\uff1d9
\u7531\u52fe\u80a1\u5b9a\u7406\u5f97AC=\u6839\u53f7\uff08AD²+CD²\ufe5a=15
\u2462\u5728RT\u22bfABC\u4e2d\uff0c\u7531\u52fe\u80a1\u5b9a\u7406\u5f97
BC=\u6839\u53f7\uff08AB²\ufe63AC²)=40
40/2=20(\u7c73/\u79d2\uff09=72\uff08\u5343\u7c73/\u65f6\uff09\uff1e70\uff08\u5343\u7c73/\u65f6\uff09
\u2234\u8d85\u901f\u4e86
\u2463\u7531\u5df2\u77e5\u6761\u4ef6\uff0c\u53ef\u77e5
ABCD\u224cAB\u2032C\u2032D\u2032
\u2234AD\u2032=BC=b C\u2032D\u2032=AB=a \u22bfABC\u224c\u22bfAC\u2032D\u2032
\u2220CAC\u2032=90\u00b0AC=AC\u2032=c
SBCC\u2032D\u2032=1/2\uff08a+b)²=1/2a²+ab+1/2b²
SBCC\u2032D\u2032\u53c8=1/2c²+ab
\u2234a²+b²=c²
\u2464\u5728RT\u22bfABF\u4e2d\uff0c\u7531\u52fe\u80a1\u5b9a\u7406\u5f97
BF=\u6839\u53f7\uff08AF²\ufe63AB²\ufe5a=6
\u2234CF=BC\ufe63BF\uff1d4
\u7531\u6298\u7eb8\u53ef\u5f97EF=DE
\u2234EF+CE=8
\u8bbeEC\u957fx\uff0c\u7531\u52fe\u80a1\u5b9a\u7406\u5f97
x²+4²=\uff088-x\uff09²
\u89e3\u5f97x=3
\u2234EC=3
\u751f\u6d3b\u4e2d\u7684\u6570\u5b66
\u8bbeBC\u22a5\u5e95\u9762
AC=\u03c0r=9.42
\u5728RT\u22bfABC\u4e2d\uff0c\u7531\u52fe\u80a1\u5b9a\u7406\u5f97
AB=\u6839\u53f7\uff08AC²+BC²\uff09\u224815.26
\u7b54\uff1a\u8981\u722c15.26cm
\u6311\u6218\u81ea\u6211
\u2460\uff08\u6839\u53f7n\uff09²+1=n+1
\u2461OA10=\u6839\u53f7\uff0810-1\uff09=3
\u2462\uff081+2+3+...+10\uff09/4=13.75
\u66f4\u4e0a\u4e00\u5c42\u697c
\u4e00\u2460d\u2461a
\u4e8c\u24605/12/13\u2461\u2474B\u2475a²-b²\u53ef\u80fd\u4e3a\u96f6\u2476\u76f4\u89d2\u4e09\u89d2\u5f62\u6216\u7b49\u8170\u4e09\u89d2\u5f62
\u4e09\u2460\u5728RT\u22bfABC\u4e2d\uff0c\u7531\u52fe\u80a1\u5b9a\u7406\u5f97
AC=\u6839\u53f7\uff08AB²\ufe62CB²)=25
\u2235AD²+CD²=625
AC²=625
\u2234AD²+CD²=AC²
\u22bfACD\u662f\u76f4\u89d2\u4e09\u89d2\u5f62
SABCD=1/2*20*15
1/2*24*7=234
\u2461\uff08\u8d85\u7eb2\u4e86\uff0c\u7565\uff09
\u2462\uff08\u7565\uff09
\u56db\u8fb9\u5f62
\u5de9\u56fa\u7ec3\u4e60
\u4e00\u2460c\u2461b\u2462c\u2463c\u2464a
\u4e8c\u24604\u24611\u30012\u30014\u246236\u24633
\u2464\u2475\u5e73\u884c\u56db\u8fb9\u5f62 \u4e24\u7ec4\u5bf9\u8fb9\u5206\u522b\u76f8\u7b49\u7684\u56db\u8fb9\u5f62\u662f\u5e73\u884c\u56db\u8fb9\u5f62
\u2476\u949c \u6709\u4e00\u4e2a\u89d2\u662f\u76f4\u89d2\u7684\u5e73\u884c\u56db\u8fb9\u5f62\u662f\u77e9\u5f62
\u4e09\u2460\u2474\u2235D\u662fBC\u7684\u4e2d\u70b9
\u2234BD=CD
\u5728RT\u22bfBDF\u4e0eRT\u22bfCDE\u4e2d
\ufe5bBF=CE
BD=CD
\u2234RT\u22bfBDF\u224cRT\u22bfCDE
\u2234\u2220B=\u2220C
\u2234\u22bfABC\u662f\u7b49\u8170\u4e09\u89d2\u5f62
\u2475\u2235\u2220A=90\u00b0=\u2220AFD=\u2220AED
\u2234AFDE\u662f\u77e9\u5f62
\u7531\u2474\u53ef\u77e5RT\u22bfBDF\u2261RT\u22bfCDE
\u2234DF=DE
\u2234AFDE\u662f\u6b63\u65b9\u5f62
\u2461\u8fde\u63a5AC
\u2234AC=AB+BC=32
\u2235OA=OD=16
\u2234AD=32
\u540c\u7406CD=32=AD=AC
\u2234\u2220ADC=60\u00b0
\u2235BO\u2225CD
\u2234\u22201=\u2220ADC=60\u00b0
\u6311\u6218\u81ea\u6211\uff08\u7565\uff09
\u751f\u6d3b\u4e2d\u7684\u6570\u5b66
30+30+30+30+30+30+50=230\uff08cm\uff09
\u7b54\uff1a\u603b\u957f\u5ea6\u4e3a230cm
\u66f4\u4e0a\u4e00\u5c42\u697c
\u4e00\u2460d\u2461c\u2462b
\u4e8c\u24605\u2461\u76f4\u89d2\u68af\u246215\u00b0
\u4e09\u2460\u7531\u5df2\u77e5\u6761\u4ef6\u53ef\u77e5\uff0cABCD\u224cA\u2032B\u2032C\u2032D\u2032
\u2234\u2220B\u2032A\u2032D\u2032=\u2220BCD
\u2235AC\u662f\u5bf9\u89d2\u7ebf
\u2234\u2220ACB=\u2220ACD
\u540c\u7406\uff0c\u2220B\u2032A\u2032C\u2032=\u2220D\u2032A\u2032C\u2032
\u2234\u22bfA\u2032CE\u224c\u22bfA\u2032CF
\u2234AE=A\u2032F
CE=C\u2032F
\u2235\u2220B\u2032A\u2032D\u2032=\u2220BCD
\u2234\u2220B\u2032A\u2032C\u2032=\u2220B\u2032C\u2032D\u2032
\u2234A\u2032F\uff1dCF
\u2234A\u2032F\uff1dCF=CE=A\u2032E
\u2234A\u2032FCE\u662f\u83f1\u5f62
\u2461\u4f5cDE\u2225AB
\u2235AM=MB
DN=NC
\u2234MN\u662fABCD\u7684\u4e2d\u4f4d\u7ebf
\u2234NF\u662f\u22bfCDE\u7684\u4e2d\u4f4d\u7ebf
\u2234NF\u2225CE
NF=1/2CE
\u2234MN\u2225BC
\u2234AD\u2225MF
\u2235AB\u2225DE
\u2234AMFD\u662f\u5e73\u884c\u56db\u8fb9\u5f62
\u2234AD=MF
\u540c\u7406,BE=MF
\u2234MN=1/2(AD+BE)+1/2CE=1/2(AC=BC)
\u2462\u2474\u22bfABC\u4e3a\u4efb\u610f\u4e09\u89d2\u5f62
\u2475\u2220BAC=150\u00b0
\u2476\u22bfABC\u662f\u7b49\u8170\u4e09\u89d2\u5f62
\u6570\u636e\u7684\u5206\u6790
\u66f4\u4e0a\u4e00\u5c42\u697c
\u4e00\u2460b\u2461b\u2462b\u2463a\u2464d
\u4e8c\u246023\ufe6a\u246184\u2462\u5e73\u5747\u6570 \u4f17\u6570\u2463\u4e59
\u4e09\u2460\u5e73\u5747\u6570\uff1a\uff0848+51+53+47+49+50+52\uff09/7=50\uff08\u4e2a\uff09
50*30=1500\uff08\u4e2a\uff09
\u7b54\uff1a\u4f30\u8ba1\u6536\u96c61500\u4e2a\u3002
\u2461\u2474\uff081*2+1.5*6+2*8+2.5*12+3*3+3.5*4+4*3\uff09/\uff082+2+6+8+12+13+4+3\uff09=2.44
\uff08\u5c0f\u65f6\uff09
\u7b54\uff1a\u5e73\u57472.44\u5c0f\u65f6
\u2475\u4e2d\u4f4d\u6570\uff1a2.5\u5c0f\u65f6 \u4f17\u6570\uff1a3\u5c0f\u65f6
\u2476\u6211\u4eec\u5e94\u591a\u5e2e\u52a9\u5bb6\u957f\u505a\u5bb6\u52a1
\u2462\u247422\u4eba
\u247538\u5c81
\u2476\uff085+4+6+5+2\uff09/44*100\ufe6a=50\ufe6a
\u7b54\uff1a\u536050\ufe6a
\u2463\u2474B
\u2475S²B=1/10[5(20-20)²+3(19.9-20)²+(20.1-20)²+(20.2-20)²]
=0.008
S²B\uff1eS²A
\u2234B\u7684\u6210\u7ee9\u597d
\u2476\u6d3e\u7532\u53bb\uff0c\u56e0\u4e3a\u7532\u7684\u6210\u7ee9\u8d8a\u6765\u8d8a\u7a33\u5b9a\uff0c\u800c\u4e59\u7684\u6210\u7ee9\u8d8a\u6765\u8d8a\u4e0d\u7a33\u5b9a\u3002
\u6311\u6218\u81ea\u6211
\u24602004\u5e74
\u2461-
XA=\uff081+2+3+4+5\uff09/5=3\uff08\u4e07\u4eba\uff09
S²A=1/5[\ufe591-3\uff09²+\uff082-3\uff09²+\uff084-3\uff09²+\uff085-3\uff09²]=2
-
XB=\uff083+3+2+4+3\uff09/5=3\uff08\u4e07\u4eba\uff09
S²B=1/5[\ufe592-3\uff09²+\uff084-3\uff09²]=0.4(\u4e07\u4eba\uff09
\u2462\u5427y=4\u5e26\u5165y=5-x/100\uff0c\u5f97
4=5-x/100
\u89e3\u5f97x=100
x-80=20\uff08\u5143\uff09
\u7b54\uff1a\u5e94\u63d0\u9ad820\u5143
\u751f\u6d3b\u4e2d\u7684\u6570\u5b66
\u2460\u4e00\u5c40\u5185\u6295n\u6b21\u5f979-n\u5206
\u2461\u7532\uff1a\uff089-5\uff09+0+\uff089-4\uff09+\uff089-8\uff09+\uff089-1\uff09+\uff089-3\uff09=24\uff08\u5206\uff09
\u4e59\uff1a(9-8\uff09+\uff089-2\uff09+\uff089-4\uff09+\uff089-2\uff09+\uff089-6\uff09+0=23\uff08\u5206\uff09
\u7532\uff1e\u4e59
\u2234\u7532\u83b7\u80dc
\u2474\u2475\u2476
\u66f4\u4e0a\u4e00\u5c42\u697c\u4e00\u2460b\u2461a\u2462c
\u4e8c\u24600.87
\u2461\u247490 76 14
\u247584 83 - -
X\uff1eY
\u247613.2 27 S²\u7532\uff1cS²\u4e59 \u7532\u7ec4\u6210\u53ca\u6574\u9f50
\u4e09\u2460\u2474\u5e73\u5747\u6570\uff1a\uff083*4+4*2+5*3+7*6+8*3+9*1+10*1\uff09/\uff084+2+3+6+3+1+1\uff09=6\uff08\u5428
\uff09
\u4f17\u6570\uff1a7\u5428
\u4e2d\u4f4d\u6570\uff1a\uff087+7\uff09/2=7\uff08\u5428\uff09
\u2475\u2160\u4e0d\u5408\u9002\uff0c\u4e0d\u80fd\u8fbe\u5230\u4fc3\u4f7f\u5927\u591a\u6570\u4eba\u8282\u7ea6\u7528\u6c34\u7684\u76ee\u7684
\u21615\u5428\uff0c\u80fd\u8fbe\u5230\u4fc3\u4f7f\u5927\u591a\u6570\u4eba\u8282\u7ea6\u7528\u6c34\u7684\u76ee\u7684
\u2461\u2474\u4e13\u4e1a\u77e5\u8bc6\uff1a18-14=4\uff08\u5206\uff09
\u5de5\u4f5c\u7ecf\u9a8c\uff1a17-15=2\uff08\u5206\uff09
\u4eea\u8868\u5f62\u8c61\uff1a14-11=3\uff08\u5206\uff09
\u2475\u7532\uff1a\uff0814*10+17*7+12*3\uff09/\uff0810+7+3\uff09=14.75\uff08\u5206\uff09
\u4e59\uff1a\uff0818*10+15*7+11*3\uff09/\uff0810+7+3\uff09=15.9\uff08\u5206\uff09
\u4e19\uff1a\uff0816*10+15*7+14*3\uff09/\uff0810+7+3\uff09=15.85(\u5206\uff09
\u4e59\uff1e\u7532\uff1e\u4e19
\u2234\u5f55\u7528\u4e59
\u2476\u6ce8\u610f\u4e13\u4e1a\u77e5\u8bc6
\u2462\u247420 80 80 80 40
\u2475\u5c0f\u674e\u6210\u7ee9\u7a33\u5b9a
\u5c0f\u738b\uff1a20\ufe6a \u5c0f\u674e\uff1a60\ufe6a
\u2476\u5982\u679c\u60f3\u5f97\u5956\uff0c\u5e94\u9009\u5c0f\u674e\u53c2\u52a0\u6bd4\u8d5b
\u5982\u679c\u60f3\u5f97\u4e00\u7b49\u5956\uff0c\u5e94\u9009\u5c0f\u738b\u53c2\u52a0\u6bd4\u8d5b
全部答案才20分，太少了吧？
还是认认真真自己做，学习不能如此投机取巧。
给你选择题的：
1CBDBB 3CDD 4C 5CDCB 7AD 9DDBCD 10B 11BCABC 13CADB 15ADBD 16BC 17CAC 19BDCDCD 21AACDDD 23CADBD 25ABCCC 27CBDCCB 29ABBABDC 31CBCBCB 33ACBCABA 35DBCCAAC 37CABAB 39CADABCBD 剩下的你自己看着办了，快开学了我自己都没写完。这是物理的。
语文我不给了，我写完了，可是整本打给你很会累的。
你看，我好多了，我还给你答案了，你要感谢我！
不过说实话20是少了点
20分太少了吧，两本作业耶
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