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【单选题】
卵巢的卵泡细胞来自于( )。A.
初级性索
B.
次级性索
C.
原始生殖细胞
D.
生殖腺嵴深部的间
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反馈参考答案：
举一反三
【单选题】In an economy, 23 million people are employed and 2 million are unemployed, but 5 million part-time workers would prefer full-time work. What is the unemployment rate?
A.
23.2 percent
B.
6.7 percent
C.
8 percent
D.
25 percent
【简答题】学校8：00开始做早操，8：30开始上第一节课，同学们做早操的时间是______分．
【单选题】早操时间是( )
A.
每学期第二至十七周，每周一至周五
B.
每学期第一至十八周，每周一至周五
C.
每学期第一至十七周，每周一至周五
D.
每学期第一至十八周，每周一、周三、周五
【单选题】You are going to listen to a passage about SOHO. Listen carefully and then choose the best answer to each of the following questions. 1. How many new jobs were created by the segment of industry label...
A.
6 million
B.
6.7 million
C.
7.7 million
D.
46 million
【单选题】Suppose initially that the working-age population is 220 million, the labor force is 150 million, and the official U-3 unemployment rate is 10 percent. 5 million new jobs are created and filled by 5 m...
A.
6.25 percent
B.
6.7 percent
C.
9.7 percent
D.
8.7 percent
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