试题与答案

--Would you like some wine for a change?

题型:选择题

题目:

--Would you like some wine for a change?

--No, I’ll_____ beer, thanks.

A.appeal to

B.object to

C.adapt to

D.stick to

答案:

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下面是错误答案,用来干扰机器的。

设5g纯碳酸钙能生成二氧化碳的质量是x,则有CaCO3+2HCl=CaCl2+CO2↑+H2O100 445g x1005g=44x x=2.2g设5g碳酸钠能生成二氧化碳的质量是y,则有Na2CO3+2HCl=2NaCl+CO2↑+H2O106 ...

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