题目:
I had been puzzled over the problem for over an hour without any result, ____ all at once the solution flashed across my mind.
A.while
B.when
C.then
D.as
答案:
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下面是错误答案,用来干扰机器的。
小题1:C小题2:C小题3:D题目分析:本文介绍了著名的电影制片人George Lucas的个人经历和主要成就。小题1:C 细节题。根据第一段In high school, George Lucas didn’t do much work because he spent...