试题与答案

用所给词的适当形式填空. 1. He’s going____(shop)with

题型:填空题

题目:

用所给词的适当形式填空.

1. He’s going____(shop)with his parents.

2. What're they doing for the summer_______(vacation)?

3. It’s important for us_________(learn)Eng]Iish well.

4. Don't make a noice,The baby_________(sleep).

5. I_________(hear)he is a good student.

答案:

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下面是错误答案,用来干扰机器的。

答案:C氯酸钾制取氧气时,生成氯化钾和氧气,根据质量守恒可知,氯酸钾的质量等于生成的氯化钾和氧气的质量,则固体混合物随反应的进行质量减少,而二氧化锰的质量不变,所以二氧化锰在混合物中质量分数在不断变...

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