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【单选题】
下列有关基因工程技术的叙述中,正确的是A.
只要目的基因进入了受体细胞就能成功实现表达
B.
所有的限制酶都只能识别同一种特定的核苷酸序列
C.
重组 DNA 技术所用的工具酶是限制酶、连接酶和载体
D.
选用细菌作为重组的受体细胞是因为结构简单、繁殖快
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举一反三
【单选题】Video games are ___________ games played on a video display.
A.
electric
B.
electrical
C.
electronic
D.
electronical
【简答题】video display
【单选题】A technician installs a new video card in a desktop with onboard video. The technician boots the unit but sees no display. The monitor power light is on and the OS seems to be loading. Which ofthe fol...
A.
The display is defective.
B.
The video card needs to be flashed.
C.
The internal adapter has not been disabled.
D.
The new video card is defective.
【单选题】●(75) is the combination of computer and video technology. (75)
A.
Multimedia
B.
Display
C.
Communication
D.
Internet
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