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【单选题】
下列维生素中,能够促进钙磷的吸收的是( )A.
维生素A
B.
维生素B1
C.
维生素C
D.
维生素D
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举一反三
【简答题】I saw an accident this morning when I was standing at the corner of Green Street. A woman with her son was driving a red sports car down Green Street very fast. While she was driving, she was talking ...
【判断题】黑质细胞富含黑色素，是脑内合成多巴胺的主要核团。黑质主要与端脑的新纹状体(尾状核和壳核)有往返纤维联系。在正常生理状态下，黑质是调节运动的重要中枢。
A.
正确
B.
错误
【单选题】An accident came ______ my mind when I saw the broken case．
A.
in
B.
on
C.
to
D.
with
【简答题】I saw an accident on my way to the college three days ago. I was waiting for the bus at the but stop. When the bus came, I got on the bus and sat on the window side. The bus started to move. After abo...
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