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【单选题】
下面关于海流的形成原因说法正确的是( )
A.
由于大气环流而形成的海流称为地转流;
B.
由于海水温盐分布不均而导致的海水的运动称为密度流。
C.
冰山的运动方向往往沿着风吹方向,其原因与地转科氏力有关。
D.
大洋的西边界流与地转科氏力无关。
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【单选题】生精小管断面中最不易见到的细胞是
A.
精原细胞
B.
初级精母细胞
C.
次级精母细胞
D.
精子细胞
【判断题】Flying In and Out.mp4 24-Unit4 Part7.mp3: Watch the videoclip carefully and decide whether the following statements are True or False. 1. Researchers have found that wearing sunglasses can help peopl...
A.
正确
B.
错误
【单选题】There has arisen a new _________ for long skirts.
A.
popularity
B.
craze
C.
shortage
D.
career
【单选题】睾丸切片中生精小管断面上最不易见到的细胞是
A.
精原细胞
B.
初级精母细胞
C.
支持细胞
D.
次级精母细胞
【单选题】There has arisen a new ? for long skirts.
A.
popularity
B.
depth
C.
rate
D.
quality
【单选题】There has arisen a new _________ for long skirts.
A.
popularity
B.
craze
C.
career
D.
shortage
【多选题】使用无菌持物钳,下述正确的是
A.
持钳时手臂要在腰部水平以上
B.
钳端不可触及无菌容器边缘
C.
不可夹取无菌油纱布
D.
到远处夹取物品后应立即放回原处
【单选题】生精小管断面中最不易见到的细胞是
A.
精原细胞
B.
初级精母细胞
C.
次级精母细胞
D.
支持细胞
【单选题】There has arisen during this twentieth century (as it arose before, in ages which we like to call dark) a pronounced anti intellectualism, a feeling that both studies and literature are not merely vai...
A.
anyway
B.
somehow
C.
little
D.
sometimes
【单选题】There has arisen a new _________ for long skirts.
A.
lacking
B.
zero
C.
poverty
D.
shortage
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