问题
选择题
．______ the satellite launch drawing near, the research workers put their hearts to the test and always stayed up late.
A．As
B．Because
C．With
D．While
答案
答案：C
考查with的复合结构。随着卫星发射日期的临近研究人员全力以赴进行测试而且总是熬夜很晚。
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