皮皮学，免费搜题
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搜题
【单选题】
核酸中核苷酸之间的连接方式是A.
2′，3′-磷酸二酯键
B.
3′，5′-磷酸二酯键
C.
2′，5′-磷酸二酯键
D.
1′，5′-糖苷键
E.
氢键
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参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】肽单位(peptide unit)
【单选题】______ way shall we go? By the stream(小溪) or through the wood?
A.
Which
B.
what
C.
Whose
D.
How
【单选题】《游山西村》一诗中具有哲理意味的名句是( )。
A.
莫笑农家腊酒浑，丰年留客足鸡豚
B.
山重水复疑无路，柳暗花明又一村
C.
箫鼓追随春社近，衣冠简朴古风存
D.
从今若许闲乘月，拄杖无时夜叩门
【单选题】陆游《游山西村》一诗中具有哲理意味的名句是 ( )
A.
莫笑农家腊酒浑,丰年留客足鸡豚
B.
山重水复疑无路,柳暗花明又一村
C.
箫鼓追随春社近,衣冠简朴古风存
D.
从今若许闲乘月,拄杖无时夜叩门
【简答题】导肽(leader peptide)
【简答题】Brain Wood watched his financial life ______ downward just when he thought he had overcome the obstacles which had been dominating his past.(reclaim; spiral; termination; layoff; subsistence; comply; ...
【判断题】Nobody that I spoke to doubted his sincerity as a politician. 译文:和我谈过话的人中没有一个怀疑他作为一个政治家的诚意。
A.
正确
B.
错误
【多选题】The correctdescriptions about peptide are
A.
A compound formed of two or more amino acids linked by peptide bonds.
B.
The amino acids that make up the peptides are residues.
C.
The peptide chain has amino terminus and carboxyl terminus .
D.
Oligopeptides less than 10 amino acids don ’ t have function .
【简答题】His sincerity ________________ (不应该受到怀疑).
【单选题】陆游《游山西村》一诗中具有哲理意味的名句是( )
A.
莫笑农家腊酒浑,丰年留客足鸡豚
B.
山重水复疑无路,柳暗花明又一村
C.
箫鼓追随春社近,衣冠简朴古风存码
D.
从今若许闲乘月,拄杖无时夜叩门
相关题目：
【单选题】______ way shall we go? By the stream(小溪) or through the wood?
A.
Which
B.
what
C.
Whose
D.
How