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【单选题】
关于 tRNA ,下列哪项叙述有误A.
能转运活化的氨基酸到核糖体上
B.
每种 tRNA 往往能转运多种氨基酸
C.
分子上具有与 mRNA 上密码子对应的反密码子
D.
空间结构呈三叶草形
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皮皮学刷刷变学霸
举一反三
【判断题】As a speaker, if you don’t know the answer to a particular question, just ignore the question and move on to the next one.
A.
正确
B.
错误
【单选题】If you don’t like the talk going on, you may say:_______.
A.
“So much for today”
B.
“Let’s stop today”
C.
“Well, it’s going late. I think we can continue the discussion next time”
【简答题】Tip 4: Go in with leverage You don’t want to the relationship with your employer if you don’t plan on leaving the company.
【单选题】If you don’t put the milk in the refrigerator，it may__________ ． A.go byB.go off#
A.
If you don’t put the milk in the refrigerator，it may__________ ． A.go by
B.
go off
C.
go on
D.
go back
【判断题】As a speaker, if you don’t know the answer to a particular question, just ignore the question and move on to the next one.
A.
正确
B.
错误
【单选题】If you don’t like the programmes, you can just— the television.
A.
turn on
B.
turn down
C.
turn up
D.
turn off
【单选题】If you don’t like the talk going on, you may say:
A.
“ So much for today. ”
B.
“ Let ’ s stop today. ”
C.
“ Let ’ s stop today. ” “Well, it’s going late. I think we can continue the discussion next time.”
【单选题】If you don’t keep the meat in the refrigerator on such a hot day, it may ____.
A.
go out
B.
go away
C.
go off
D.
go down
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