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问题 单项选择题

用较小电流表测量大电流时，下列方法中正确的是（）后再进行测量。

A.将电流表直接串联在电路

B.将电流表与一阻值很小的电阻并联

C.将电流表与一小电阻串联

D.将电流表与一阻值很大的电阻并联

答案

参考答案：B

判断题

培养自己的自理能力，最基本的就是要告别依赖，学会独立的生活。[ ]
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单项选择题

Many students do not like tostudy history(历史)．They say that there are (41) many names and dates to (42) ．But if we do not know about the (43) ，we can not understand the present well．For example，if we wish to know how men (44) to use fire，we have to know what men did (45) the past to travel at night or to keep themselves (46) in cold nights．Only a study of history will make US realize(意识到) (47) everything we do today is the result of what (48) people did in the past．

[A] that [B] which [C] what

As we (49) history，we learn many interesting (50) ．History helps US understand our present life better．
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