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【单选题】
精子的发育过程正确的是
A.
精原细胞→初级精母细胞→次级精母细胞→精子细胞→精子
B.
初级精母细胞→精原细胞→初级精母细胞→精子细胞→精子
C.
精原细胞→初级精母细胞→精子细胞→次级精母细胞→精子
D.
精原细胞→精子细胞→初级精母细胞→次级精母细胞→精子
E.
精原细胞→次级精母细胞→精子细胞→初级精母细胞→精子
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参考答案:
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【判断题】Immiserizing growth is the situation in which the expansion of a country's exporting industry results in an increase in the world price of the exported good and a n increase in the economic welfare of...
A.
正确
B.
错误
【判断题】自动体外除颤仪(AED)只能在医生的指导下使用
A.
正确
B.
错误
【多选题】做磅蛋糕需要的材料主要有( )。
A.
B.
面粉
C.
鸡蛋
D.
黄油
【单选题】With the help of the government and the world and their own efforts, women of the Peruvian Andes will soon be able to go back home.
A.
Y
B.
N
C.
NG
【简答题】The concept of solitude (独处) in the digital world is almost non-existent. In the world of digital technology, e-mail, social networking and online video s, information is meant to be____36___. Sol...
【简答题】The concept of solitude(独处) in the digital world is almost non­existent.In the world of digital technology,e­mail,social networking and online video s,information is meant to be ___.Solitude can b...
【简答题】Every day we experience one of the wonders of the world around us without even realizing it. It is not the amazing complexity of television, nor the impressive technology of transport. The universal w...
【单选题】The largest number of rainforests in the world are located on the African continent.
A.
Y
B.
N
C.
NG
【简答题】It’s not the first movie to show the end of the world. But in the latest box office hit 2012 it is neither aliens nor a killer disease that threaten the human race, but climate change. Some say the fi...
【多选题】关于 LTE 网络整体结构,下列说法正确的是
A.
E-UTRAN 用 eNodeB 替代原有的 RNC-NodeB 结构
B.
各网络节点之间的接口使用 IP 传输
C.
通过 IMS 承载综合业务
D.
eNodeB 间的接口为 S1 接口
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