酪氨酸tRNA的反密码子是5’-GUA-3’，它能辨认的mRNA上的相应密

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问题单项选择题

酪氨酸tRNA的反密码子是5’-GUA-3’，它能辨认的mRNA上的相应密码子是（）。

A.GUA

B.AUG

C.UAC

D.GTA

E.TAC

答案

参考答案：C

选择题

The new dictionaries are very careful. They _____ well and _____ already. [ ]

A. sell, have been sold out

B. sold, had sold out

C. sell, sell out

D. are sold, have been sold out

填空题

构件的变形或裂缝宽度过大会影响结构的（）和（）。