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2.Tom said they had finished the job yesterday.

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3.She asked me don’t smoke in the room.

4.They asked that he was there.

5.I asked you where was he going.

关于电阻式传感器工作原理描述正确的是R=p*l/s

A. ρ —— 电阻丝的电阻率
B. l —— 线的长度
C. S —— 心里的阴影面积
D. S —— 地球横截面积