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【多选题】
PCR 技术扩增 DNA ,需要的条件是( ) A B C D E FA.
目的基因
B.
引物
C.
四种脱氧核苷酸
D.
核糖体
E.
mRNA
F.
DNA 聚合酶等
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【简答题】展现或模拟生活中的情景让
【单选题】It is ten o’clock in the morning but he is still ________.
A.
in the bed
B.
at the bed
C.
in bed
D.
on bed
【简答题】It is eight o’clock. The children go to school by car every day, but they are going to school on foot today. It is ten o’clock. Mrs. Sawyer usually stays at home in the morning, but this morning, she ...
【单选题】下列不是 外部招聘 的 优点 是 ()
A.
被聘 干部具有 “ 外来优势 ” ，没有历史包袱
B.
能够为组织带来新鲜空 气
C.
有利 于使被聘者迅速开展工作
D.
有利 于平息和缓和内部竞争者之间的紧张关系
【简答题】a. kept in prison or in a place that you are not allowed to leave 的;遭监禁的
【简答题】It is eight o’clock. The children go to school by carevery day, they are going to school on foot. It is ten o’clock. Mrs. Sawyerusually stays at home in the morning, but this morning, she is going to ...
【简答题】的,遭监禁的
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