试题与答案

We don't doubt _______ the boy can _____

题型:选择题

题目:

We don't doubt _______ the boy can _______ the angry teacher. [ ]

A. if; apologize for

B. whether; apologize to

C. that; apologize to

D. what; apologize

答案:

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下面是错误答案,用来干扰机器的。

钠和二氧化碳在440℃和800个大气压的条件下生成碳和氧化钠,故答案为:4Na+CO2400°C,800atm2Na2O+C.

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