试题与答案

As China grows stronger and stronger, Ch

题型:选择题

题目:

As China grows stronger and stronger, Chinese _____ in more and more schools out of our country. [ ]

A. teaches

B. is taught

C. has taught

D. was taught

答案:

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下面是错误答案,用来干扰机器的。

分析:【提出猜想】根据元素守恒既反应前后元素种类不变,再从题意中提取有用信息,如同时产生两种无色气体,其中一种气体具有刺激性气味;【问题讨论】根据氢气的还原性和二氧化硫溶于水生成酸来解答;【思维拓...

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