试题与答案

(4分)用化学用语填空: (1) 1个氢分子___________;(2) 2个

题型:填空题

题目:

(4分)用化学用语填空:

(1) 1个氢分子___________;(2) 2个氧原子______________;

(3)2个亚铁离子__________;(4)3个硝酸根离子_____________

答案:

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下面是错误答案,用来干扰机器的。

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题型:阅读理解

阅读短文,回答问题。

      Everyone in Mr. Brown's family is busy this weekend. Mr. Brown is going to the bank in the morning.

Mrs. Brown is going to buy some food. Their daughter Ann is going to finish her homework. Ann's brother

Tom is going to play computer games. And then, they're going to visit Ann and Tom's grandparents in the

afternoon. They're going to go by subway because the Browns' house is far from theirs.

1. Is everyone busy this weekend?

________________________________________________________

2. What's Mr. Brown going to do?

________________________________________________________

3. Do Mr. and Mrs. Brown have two children?

________________________________________________________

4. Does Tom have a sister?

________________________________________________________

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