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【判断题】
非编码RNA(non-coding RNAs)即非编码序列(non-coding sequenece)。A.
正确
B.
错误
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反馈参考答案：
举一反三
【简答题】I came _______ my house two days ago . [ ] A back on B back to C to back D back
【单选题】I came _______ my house two days ago . A back on B back to C to back D back
A.
back on
B.
back to
C.
to back
D.
back
【单选题】It was too late to ______ of the contract.
A.
back out
B.
back down
C.
back up
D.
back away
【简答题】A went back B．returned back C． went back to D． returned back to17． A went back B．returned back C． went back to D． returned back to
【单选题】He ________ in three days. A. coming back B. came back C. will come back D. is going to coming back
A.
coming back
B.
came back
C.
will come back
D.
is going to coming back
【简答题】back-to-back credit
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