选择题：______ its economy continues to grow, the US is in

题目分类：石家庄铁道大学-大学英语3
题目类型：选择题
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题目内容：

______ its economy continues to grow, the US is increasingly becoming a nation of part-time and temporary workers.
A、 Even though
B、 If only
C、 Now that
D、 Provided that

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