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【单选题】
下列不属于DNA复制需要的物质的是
A.
四种dNTP
B.
亲代DNA分子
C.
RNA引物
D.
能量GTP
E.
酶类及蛋白因子
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参考答案:
举一反三
【单选题】FTP服务端口号______。
A.
21
B.
23
C.
53
D.
80
【简答题】From 19 to 1658 England was called a Commonwealth. It was ruled first by Oliver Cromwell as _______.A. Lord Protector B. Lieutenant General C. Commander of the New Model Army D. President
【单选题】From 1649 to 1658 England was called a Commonwealth. It was ruled by Oliver Cromwell as ______
A.
Lord Protector
B.
Lieutenant General
C.
Commander of the New Model Army
D.
President
【单选题】Demeter is believed to bring mankind harvest and _______.
A.
happiness
B.
love
C.
crops
D.
foods
【简答题】通读下面短文,掌握其大意,然后从短文后面的括号内选出可以填入短文空格处的词。 Peter is a famous writer now. But he was not a 1______ student when he was young. He was often late for 2______ and didn't like doing his homework. Sometimes, he...
【判断题】Demeter was the mother of Persephone.
A.
正确
B.
错误
【单选题】Demeter’s daughter Persephone was kidnapped by ______.
A.
Hades
B.
Zeus
C.
Poseidon
D.
Ares
【判断题】要扛稳粮食安全这个重任。确保重要农产品特别是粮食供给,是实施乡村振兴战略的首要任务。()
A.
正确
B.
错误
【单选题】From 1649 to 1658 England was called a Commonwealth. It was ruled first by Oliver Cromwell as _______.
A.
Lord Protector
B.
Lieutenant General
C.
Commander of the New Model Army
D.
President
【简答题】SQL Server的约束包括 primary key 约束、 default 约束、 foreign key 约束、 和 。
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