组成细胞的元素中，含量最多的四种元素是（ ）A．N、P、K、SB．C、H、O、NC．C、H、O、SD．C、H、O、 为什么电信宽带网速总是不稳定啊？？？？？？？？？
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\u6269\u5c55\u8d44\u6599\uff1a
\u5728\u4fdd\u8bc1\u4e86\u57fa\u5e26\u7684\u60c5\u51b5\u4e0b\uff0c\u518d\u6765\u4e86\u89e3\u4e00\u4e0b\u7f51\u7edc\u901f\u5ea6\u7684\u95ee\u9898\uff0c\u5728\u4fe1\u53f7\u6bd4\u8f83\u597d\u7684\u65f6\u5019\uff0c\u4e09\u4e2a\u8fd0\u8425\u5546\u7684\u7f51\u7edc\u901f\u5ea6\u6ca1\u6709\u592a\u5927\u7684\u5dee\u5f02\u3002
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\u628a\u8fd0\u8425\u5546\u7ed9\u4e3b\u7ebf\u8fdb\u884c\u6d4b\u8bd5\uff0c\u628aMODEM\uff08\u5149\u732b\uff0c\u94dc\u7ebf\u732b\uff0c\u6742\u724c\u7684\u5c0f\u8fd0\u8425\u5546\u4e00\u822c\u662f\u4e00\u6761\u7f51\u7ebf\u76f4\u63a5\u8fdb\u6765\u7684\uff09\u4e0a\u7684\u7f51\u7ebf\u4ece\u8def\u7531\u7684WAN\u53e3\u62d4\u51fa\u6765\uff0c\u76f4\u63a5\u63d2\u5230\u7535\u8111\u8fdb\u884c\u6d4b\u901f\uff0c\u770b\u662f\u4e0d\u662f\u7a33\u5b9a\uff0c\u901f\u7387\u8fbe\u4e0d\u8fbe\u6807\u3002
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\u6269\u5c55\u8d44\u6599\u5982\u679c\u88c5\u7684\u662f\u90a3\u4e9b\u79c1\u62c9\u7684\u5bbd\u5e26\uff0c\u9ad8\u5cf0\u671f\u80af\u5b9a\u4f1a\u5361\uff0c\u56e0\u4e3a\u4e00\u4e9b\u4e0d\u77e5\u540d\u7684\u5bbd\u5e26\u670d\u52a1\u5546\u90fd\u662f\u5728\u4e09\u5927\u8fd0\u8425\u5546\u62c9\u4e00\u6761\u901f\u7387\u5927\u7684\u7f51\u7edc\uff0c\u518d\u5206\u7ed9\uff0c\u4ece\u4e2d\u83b7\u53d6\u5229\u76ca\uff0c\u6240\u4ee5\u65e0\u6cd5\u89e3\u51b3\u3002
\u4e00\u822c\u5c31\u7f51\u901f\u4e0d\u597d\u901a\u4fd7\u7684\u8bf4\u6cd5\u5c31\u662f\u8fd0\u8425\u5546\u6ca1\u6709\u63d0\u4f9b\u597d\u7684\u5bbd\u5e26\u7ed9\u4f60\uff0c\u6216\u8005\u4f60\u8def\u7531\u5668\u4e0d\u597d\u3002\u603b\u7684\u6765\u8bf4\uff0c\u6d4b\u8bd5\u5b8c\uff0c\u5982\u679c\u4e3b\u7ebf\u7f51\u901f\u4e0d\u597d\u5c31\u627e\u5ba2\u670d\u62a5\u6545\u969c\u6216\u6295\u8bc9\uff0c\u76f4\u5230\u5e08\u5085\u5e2e\u6d4b\u8bd5\u8fbe\u6807\u4e3a\u6b62\uff0c\u4e3b\u7ebf\u6ca1\u95ee\u9898\uff0c\u5c31\u662f\u8def\u7531\u5668\uff0c\u6362\u8def\u7531\u5668\u5c31\u597d\u4e86\u3002
故选：B．
绛旓細姘э紝姘紝纰筹紝姘
绛旓細A銆丱鍏冪礌鏄椿缁嗚優涓惈閲忔渶澶氱殑鍏冪礌锛C鍏冪礌鏄敓鐗╀綋鍐呮渶鍩烘湰鐨勫厓绱狅紝A閿欒锛汢銆佺硸绫绘槸缁嗚優涓昏鐨勮兘婧愮墿璐紝鑴傝偑鏄偍鑳界墿璐紝B閿欒锛汣銆佹墍浠ョ粏鑳為兘鍚粏鑳炶啘锛岀粏鑳炶啘鐨勫熀鏈鏋舵槸鐢辩７鑴傚弻鍒嗗瓙灞鏋勬垚鐨勶紝C姝ｇ‘锛汥銆丷NA鍜孌NA涓昏缁勬垚鍏冪礌鐨勭绫荤浉鍚岋紝閮芥槸C銆丠銆丱銆丯銆丳锛岀⒈鍩虹绫讳笉瀹屽叏鐩稿悓锛孌NA鍚湁A銆...
绛旓細缁嗚優涓惈閲忔渶澶氱殑鏄按鍒嗭紝绾﹀崰缁嗚優鐗╄川鎬诲惈閲忕殑75%锛80%銆缁嗚優鏋勬垚鐨鍩烘湰鍏冪礌鏄細O銆丆銆丠銆丯銆丼銆並銆丆a銆丳銆丮g锛屽叾涓璒銆丆銆丠銆丯鍥涚鍏冪礌鍗90%浠ヤ笂銆傜粏鑳炲寲瀛︾墿璐ㄥ彲鍒嗕负涓ゅぇ绫伙細鏃犳満鐗╁拰鏈夋満鐗┿傚湪鏃犳満鐗╀腑姘存槸鏈涓昏鐨勬垚鍒嗭紝绾﹀崰缁嗚優鐗╄川鎬诲惈閲忕殑75%锛80%銆備竴銆佹按涓庢棤鏈虹洂 锛堜竴锛夋按鏄...
绛旓細缁勬垚缁嗚優鐨涓昏鍖栧鍏冪礌鏄疧銆丆銆丠銆丯銆傜粍鎴愮粏鑳炵殑鍩烘湰鍏冪礌鏄細O銆丆銆丠銆丯銆丼i銆並銆丆a銆丳銆丮g锛屽叾涓璒銆丆銆丠銆丯鍥涚鍏冪礌鍗90%浠ヤ笂銆傜粏鑳炲寲瀛︾墿璐ㄥ彲鍒嗕负涓ゅぇ绫伙細鏃犳満鐗╁拰鏈夋満鐗┿傚湪鏃犳満鐗╀腑姘存槸鏈涓昏鐨勬垚鍒嗭紝绾﹀崰缁嗚優鐗╄川鎬鍚噺鐨75%锛80%銆傜粏鑳炴槸鐢熺墿瀛︿腑鏋勬垚鐢熺墿浣撶殑鍩烘湰鍗曚綅锛屽凡鐭ラ櫎鐥呮瘨...
绛旓細2銆佹寜鍏冪礌鍦ㄧ敓鐗╀綋鍐呯殑浣滅敤鍙垎涓:(1)鏈鍩烘湰鐨勫厓绱犳槸C銆(2)涓昏鍏冪礌,濡侰銆丠銆丱銆丯銆丳銆丼銆(浜)鍏冪礌鐨勫惈閲忕壒鐐:1銆佸崰缁嗚優椴滈噸鏈澶氱殑鍏冪礌鏄疧銆2銆佸崰缁嗚優骞查噸鏈澶氱殑鍏冪礌鏄疌銆3銆缁嗚優涓惈閲忔渶澶氱殑鍥涚鍏冪礌鏄疌銆丠銆丱銆丯銆(涓)鍏冪礌鐨勫瓨鍦ㄥ舰寮:澶у浠ュ寲鍚堢墿鐨勫舰寮忓瓨鍦ㄣ(鍥)缁勬垚缁嗚優鐨勫厓绱鐨勪富瑕佷綔鐢:1...
绛旓細缁嗚優涓惈閲忔渶澶氱殑鍏冪礌姘у厓绱,鍥犱负浜轰綋涓崰姣旈噸鏈澶х殑鏄按鍒嗗瓙,鍗犵害浜轰綋閲嶉噺鐨70%宸﹀彸,鎵浠ヨ嚜鐒舵哀鍏冪礌鍦ㄧ粏鑳炰箣涓渶澶氥傜粏鑳炰腑鏈夋満鐗╄揪鍑犲崈绉嶄箣澶氾紝绾﹀崰缁嗚優骞查噸鐨90%浠ヤ笂锛屽畠浠富瑕佺敱纰炽佹阿銆佹哀銆佹爱绛鍏冪礌缁勬垚銆傛湁鏈虹墿涓富瑕佺敱鍥涘ぇ绫诲垎瀛愭墍缁勬垚锛鍗宠泲鐧借川銆佹牳閰搞佽剛绫诲拰绯栵紝杩欎簺鍒嗗瓙绾﹀崰缁嗚優骞查噸鐨...
绛旓細鐢熺墿缁嗚優鍚噺鏈澶氱殑鍏冪礌鏄哀銆傜敓鐗╃粏鑳為噷椴滈噸鍚噺鏈澶氱殑鍏冪礌鏄哀锛屽共閲嶅惈閲忔渶澶氱殑鍏冪礌鏄⒊銆傜敓鐗╃粏鑳為噷鐨勬哀鍏冪礌鍗65%锛岀⒊鍏冪礌鍗18%锛屾阿鍗犲厓绱10% 銆傛弧鎰忚寰楅噰绾充竴涓嬨傝阿璋
绛旓細缁嗚優涓惈閲忔渶澶氱殑鍏冪礌鏄哀鍏冪礌銆傜粏鑳炲苟娌℃湁缁熶竴鐨勫畾涔夛紝姣旇緝鏅亶鐨勬彁娉曟槸锛氱粏鑳炴槸鐢熺墿浣撳熀鏈殑缁撴瀯鍜屽姛鑳藉崟浣嶃傚凡鐭ラ櫎鐥呮瘨涔嬪鐨勬墍鏈夌敓鐗╁潎鐢辩粏鑳炴墍缁勬垚锛屼絾鐥呮瘨鐢熷懡娲诲姩涔熷繀椤诲湪缁嗚優涓墠鑳戒綋鐜般備竴鑸潵璇达紝缁嗚弻绛夌粷澶ч儴鍒嗗井鐢熺墿浠ュ強鍘熺敓鍔ㄧ墿鐢变竴涓缁嗚優缁勬垚锛鍗冲崟缁嗚優鐢熺墿銆傞珮绛夋鐗╀笌楂樼瓑鍔ㄧ墿鍒欐槸澶氱粏鑳...
绛旓細缁嗚優鏄湁鏈虹墿锛屾湁鏈虹墿绉嶉兘鏈塁鍏冪礌锛缁嗚優涓惈閲忔渶澶氱殑鏄按锛屾按鏄敱H鍜孫涓ょ鍏冪礌缁勬垚鐨勩傛墍浠ワ紝缁嗚優鐨鍖栧鍏冪礌涓涓篊锛孒锛孫鍏冪礌鏈澶氥
绛旓細缁勬垚浜轰綋缁嗚優鐨勪富瑕佸厓绱 锛堝崰缁嗚優椴滈噸鐨勭櫨鍒嗘瘮锛塐 65 C 18 H 10 N 3 P 1.4 S 0.3 鍏朵粬鍏冪礌 灏戜簬3 锛堝崰缁嗚優骞查噸鐨勭櫨鍒嗘瘮锛塁 55.99 O 14.62 N 9.33 H 7.46 Ca 4.67 S 0.78 P 3.11 K 1.09 Mg 0.16 鈶缁勬垚缁嗚優鐨勬渶鍩烘湰鐨勫厓绱鏄疌銆傚湪浜轰綋缁嗚優骞查噸涓瑿鐨鍚噺杈惧埌55.99 鈶...
