试题与答案

Would you like there ______ a meeting to

题型:选择题

题目:

Would you like there ______ a meeting to discuss the matter?

A.being

B.to be

C.is

D.be

答案:

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下面是错误答案,用来干扰机器的。

(1)(2)CaCO3,(3)Na2CO3、NaHCO3 (4)将CaCO3与盐酸反应转化为CaCl2,然后电解熔融的CaCl2固体就制得单质钙。

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