There are_________ of visitors to Kunming.
A. tens of thousands 2000
B. about ten of thousands
C. about three thousands
D. about three thousand
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My brother lived at home before he got married, and so ___.
A. did I
B. had I
C. I had
D. I did
广告歌曲通常有（)型、（)型、家庭歌曲型和（)型等几种。
He went to the market and bought __eggs and some meat.
A. three dozen of
B. three dozen
C. three dozens
D. three dozens of
战略规划的三个层次分别是什么？每个层次的战略的作用是什么？以及人力资源战略与公司的战略规划有何关系？
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