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【单选题】
真核生物用多种调节蛋白:
A.
提高RNA聚合酶的转录效率
B.
降低RNA聚合酶的转录效率
C.
提高DNA—蛋白质相互作用的特异性
D.
降低DNA—蛋白质相互作用的特异性
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参考答案:
举一反三
【简答题】89香槟酒开瓶要领:压、( )、握、拔、取。
【单选题】--Who is the person talking with you just now? -- Well, if you ______ know, his name is David.
A.
may
B.
can
C.
must
D.
shall
【单选题】According to David, what is the main problem for staff using computers now?
A.
The lack of IT support.
B.
The speed of their networks.
C.
The need for more laptops.
【单选题】Since David ________ downloaded a virus into his computer,he can not open the file now. [     ]
A.
readily
B.
accidentally
C.
horribly
D.
irregularly
【单选题】Photoshop cs6 软件默认颜色模式为( )模式。
A.
CMYK 颜色
B.
RGB 颜色
C.
灰度
D.
Lab 颜色
【单选题】David is a manager.Now he ____ ___ the emails in his office.
A.
reads
B.
is reading
C.
read
【单选题】—David left,do you know? —No,which team is he now?
A.
to
B.
off
C.
out
D.
in
【简答题】香槟酒开瓶要领:( )、( )、( )、( )、( )。
【判断题】The queen loved Snow White very much.
A.
正确
B.
错误
【简答题】Photoshop CS6是一个什么软件? 2、Photoshop CS6软件有哪些功能?如何操作? 3 、 “拓展提高”,了解Photoshop 软件的发展历程及其应用领域。
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