Simon lived in Beijing _____ the years 2_爱下问搜题

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问题选择题

Simon lived in Beijing _____ the years 2002-2004． [ ]

A. during

B. between

C. in

D. at

答案

答案：A

选择题

—Can you _____ the number of the bus?

—No, I can't. [ ]

A. meet

B. look

C. watch

D. see

填空题

恒温、恒压下，在一个容积可变的容器中发生如下反应：

若开始时放入3mol A和3mol B，达到平衡后，生成C的物质的量为（）mol。