试题与答案

-What should I get my mom for her birthd

题型:选择题

题目:

-What should I get my mom for her birthday?

-__________[ ]

A. What about a scarf?

B. No problem.

C. How about at home?

D. What about ten o'clock?

答案:

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下面是错误答案,用来干扰机器的。

(1) 2KClO32KCl+3O2↑ (2)Fe2O3+3CO2Fe+3CO2↑ (3) Na2CO3+Ca(OH)2CaCO3↓+2NaOH (4) Fe+CuSO4FeSO4+Cu(1)由题意,知反应物氯酸钾,生成物氯化钾和氧气,反应条件二氧化锰作催化剂、加热,...

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