【单选题】下列( )碱基不是RNA、DNA所共有的。
【单选题】第二节 听下面5段对话或独白。每段对话或独白后有几道小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置。听每段对话或独白前,你将有5秒钟的时间阅读各个小题;听完后,各小题将给出5秒钟的作答时间。每段对话或独白读两遍。 听力原文:M: What's wrong with you, Mary? You look worried. W: I'm all right. It's al...
A.
She was scolded by her father.
B.
She is worried about her father's health.
C.
She had a quarrel with her father.
【单选题】下列( )碱基不是DNA、RNA所共有。
【单选题】We can see from the passage that French production ______.
A.
was insufficient to meet the needs of the French
B.
was flooding the international market
C.
was sufficient for the French consumers
D.
could keep up with long-ranged developments of people's needs
【单选题】In my opinion, what he told us just now about the affair simply doesn't make any______.
【单选题】下列()碱基不是RNA、DNA所共有的。 A、腺嘌呤A
【单选题】下列项目中,不属于利润分配核算内容的是( )。