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问题 选择题

下图中的电路图和实物图相对应的是 （    ）

答案

答案：D

题目分析：观察实物图可见，开关S2与灯泡L2串联后再与灯泡L1并联，然后接入电路，开关S1在干路上。对照各电路图，A、B中S1在支路上，不符合题意；C中S1在支路上，不符合题意；D符合题意，选填D。

改错题

此题要求改正所给短文中的错误。短句中有10处错误，每句中最多有两处。错误中涉及一个单词的增加，删除或修改。

增加：在缺词处加一个漏字符号 (∧) ，并在其下面写出该加的词

删除：把多余的词用斜线（ ＼）划掉。

修改：在错的词下划一横线，并在该词的下面写出修改的词

注意：

1.每处错误及其修改均仅限一次

2.只允许修改10处，多者 从第11处起 不计分

Last Saturday, I wanted very much to see a film together with my brother after supper.on my way to the cinema, we happen to meet an American named Peter,who had lost his way,Looked worried.

when he told us that he wasn’t able to find the hotel,we decided take him there.when we went to the hotel,we told of Peter the great changes that had taken place in our country in the past few year,and hen told us a lot of things about the youths in the U.S.A.

Although my brother and I missed a interesting film, we felt very happily.for we ha not only helped Peter out of trouble and also learnt something by him.
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单项选择题

下列统计指标中，属于价值指标的是()。

A．总收入/年

B．工月/年

C．工时/日

D．公斤/亩
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