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题目内容
（西安石油大学大学英语I（下））
It may not rain, but you had better take an umbrella__________.(本题2.5分)
A、 in case
B、 as well
C、 as least
D、 in need
A、 in case
B、 as well
C、 as least
D、 in need
参考答案
