题目内容

色氨酸和甲硫氨酸都只有一个密码子。 ( )

A. 对
B. 错

查看答案

搜索结果不匹配？点我反馈

更多问题

__________ Plastics, the machine is light in weight.

A. To make of
B. Having made
C. To be made of
D. Made of

Cot1/2与基因组大小相关。 ( )

A. 对
B. 错

三种RNA必须相互作用以起始及维持蛋白质的合成。 ( )

A. 对
B. 错

Many an airplane and many a big gun __________ in the exhibition．

A. are shown
B. has been shown
C. has shown
D. shown