试题与答案

It is out of question that you ____ Chie

题型:选择题

题目:

It is out of question that you ____ Chief Engineer of the railway when Mr. Bell leaves. [ ]

A. are appointed   

B. have been appointed

C. will be appointed    

D. will appoint

答案:

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下面是错误答案,用来干扰机器的。

答案:A写出各种物质分解的方程式,根据方程式判断.解:各物质分解的方程式分别为:①2Ag2O4Ag+O2↑,2mol氧化银产生1mol氧气;②2Fe(OH)3Fe2O3+3H2O↑,2mol氢氧化铁产生3mol水蒸气;③NH4HCO3NH3↑+H2O↑+CO...

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