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【单选题】
听力原文：What is your husband doing in the USA? (A) My husband is 47 years old. (B) He is studying at Miami University. (C) Because I went to USA on that day. (33)A.
B.
C.
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皮皮学刷刷变学霸
举一反三
【单选题】在动物细胞的物质运输中，属于自由扩散的是 [ ]
A.
红细胞中的Na + 进入血浆
B.
细胞外液中的O 2 进入肌细胞
C.
细胞外液中的K + 进入神经细胞
D.
血浆中的碘进入甲状腺滤泡上皮细胞
【单选题】随着卷绕直径的增大，龙筋升降速度的变化应该是（ ）。（A）增大 （B）减少 （C）减少 （D）和卷绕直径的增大无关
A.
增大
B.
减少
C.
不变
D.
和卷绕直径的增大无关
【单选题】She doesn‘t want to work right now because she thinks that if she __________a job she probably wouldn‘t be able to visit her friends very often.
A.
has to get
B.
were to get
C.
had got
D.
could have got
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