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【单选题】
根据旅游体验的类型把旅游分为两大类。以探索和刺激寻求为主要特征是的()A.
观光游
B.
度假游
C.
怀旧游
D.
商务游
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反馈参考答案：
举一反三
【单选题】The nuclear pore complex allows for ____
A.
passive diffusion of small molecules
B.
import of proteins
C.
export of mRNA
D.
all of the above
【单选题】Which one is not a component of the nuclear pore complex?
A.
nuclear lamina
B.
Cytoplasmic ring
C.
Nuclear ring
D.
Spoke
【单选题】The nuclear pore complex allows for
A.
passive diffusion of smaller molecules.
B.
import of proteins.
C.
active transport of very large molecules.
D.
all of the above.
【简答题】I hurt my .
【简答题】核孔复合体(nuclear pore complex，)
【单选题】---Mum, I hurt my leg when I climbed the tree. --- You ___ that tall tree. I’ve told you many times.
A.
mustn’t have climbed
B.
shouldn’t have climbed
C.
couldn’t climb
D.
may not climb
【简答题】nuclear pore complex
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