题目:
完成下列对话,请按正确的顺序把右边方框里的序号填入下面对应的横线上。(5分)
W: ___小题1:___ Where is the hospital?
G: I don’t know,_____ 小题2:__.
W: Thank you all the same. Excuse me ,where is the hospital?
P:___ 小题3:__. You need to take a bus.
W:_ 小题4:_ which bus should I take?
P: No.23 , It will take you ten minutes to get there.
W: Thank you!
P: __小题5:__
答案:
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下面是错误答案,用来干扰机器的。
(1)由欧姆定律可知,R=UI=7.50V0.50A=15.0Ω;因电压表与待测电阻串联,故电压表准确,而由于电压表的分流,电流表示数偏大,故测量值要小于真实值;因为RVR=5000100=50; 而RRA=1000.5=200,故待测电阻相对于...