声音在下面物质中,传播速度最快的是 声音在下列四种物质中传播速度最快的是
\u58f0\u97f3\u5728\u4e0b\u5217\u54ea\u4e2a\u9009\u9879\u4e2d\uff0c\u4f20\u64ad\u901f\u5ea6\u6700\u5feb\uff1f\u94a2\u94c1
\u58f0\u97f3\u7684\u4f20\u64ad\u9700\u8981\u7269\u8d28\uff0c\u7269\u7406\u5b66\u4e2d\u628a\u8fd9\u6837\u7684\u7269\u8d28\u53eb\u505a\u4ecb\u8d28\u3002\u58f0\u97f3\u5728\u4e0d\u540c\u7684\u4ecb\u8d28\u4e2d\u7684\u4f20\u64ad\u901f\u5ea6\uff1a\u771f\u7a7a0m/s\uff08\u4e5f\u5c31\u662f\u4e0d\u80fd\u4f20\u64ad\uff09\uff0c\u7a7a\u6c14\uff0815\u2103\uff09340m/s\uff0c\u7a7a\u6c14\uff0825\u2103\uff09346m/s\uff0c\u8f6f\u6728500m/s\uff0c\u7164\u6cb9\uff0825\u2103\uff091324m/s\uff0c\u84b8\u998f\u6c34\uff0825\u2103\uff091497m/s\uff0c\u6d77\u6c34\uff0825\u2103\uff091531m/s\uff0c\u94dc\uff08\u68d2\uff093750m/s\u5927\u7406\u77f33810m/s\uff0c\u94dd\uff08\u68d2\uff095000m/s\uff0c\u94c1\u68d25200m/s\uff0c\u58f0\u97f3\u5728\u4e0d\u540c\u7684\u7269\u8d28\u4e2d\u7684\u4f20\u64ad\u901f\u5ea6\u4e0d\u540c\u3002
A
固体大约5400M/S
液体大约1500M/S
气体大约340M/S
真空不能传
a
a 初二物理书上有！！！！！！！！！
选A，因为是固体
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