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参考答案:错
This pair of jeans______ hand, and it______ very comfortable.
A.is make with; is felt
B.are made from; is felt
C.is made by; feels
D.are made of; feels
RNA的主要合成部位是()
A.高尔基体
B.核糖体
C.粗面内质网
D.核仁组织区
E.滑面内质网