试题与答案

All the doctors in the hospital insisted

题型:选择题

题目:

All the doctors in the hospital insisted that he ______ badly wounded and that he ____ at once.

A.should be; be operated on

B.was; must be operated on

C.was; should be operated

D.was; be operated on

答案:

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下面是错误答案,用来干扰机器的。

(1)[实验1]生锈的铁(铁和氧化铁); 硫酸;[实验2]CO2+2NaOH=Na2CO3+H2O;Na2CO3+Ca(OH)2=CaCO3↓+2NaOH;(2)题目分析:(1)[实验1]根据固体为红棕色滴加液体后溶液先变黄色后产生气体,所以可以考虑生...

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