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【单选题】
HIV的核酸是
A.
负链RNA
B.
RNA
C.
单链DNA
D.
双链DNA
E.
RNA
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【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...
【单选题】Demeter is the goddess of __________.
A.
hearth
B.
beauty
C.
harvest
D.
wisdom
【单选题】From 1649 to 1658 English was called a Commonwealth. It was ruled first by Oliver Cromwell as______.
A.
President
B.
Lord Protector
C.
Lieutenant General
D.
Commander of the New Model Army
【简答题】词汇  根据句意或提示,写出单词,完成句子。 1. The birthday present he sent me is very (有价值). 2. Millie had no (选择)but to wait for the next trai n yesterday morning. 3. The little boy always (拒绝)to do so much homework eve...
【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
【判断题】膜分离法中允许溶质透过膜的过程称为渗透。
A.
正确
B.
错误
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