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【单选题】
下列关于扫描仪的安装程序顺序正确的是( )(1)启动windows操作系统,打开“控制面板”,选择“添加/删除硬件”图标,系统将自动完成新设备的检测。(2)打开计算机和扫描仪电源开关(3)安装扫描仪软件(4)按照屏幕提示,完成驱动程序的安装(5)安装完成,windows的“程序”菜单中将出现扫描软件的图标。A.
⑵⑴⑶⑷⑸
B.
⑵⑴⑷⑶⑸
C.
⑴⑵⑷⑶⑸
D.
⑴⑷⑵⑸⑶
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举一反三
【单选题】_______as an Olympic event, a sport must be played in at least 75 countries on at least 4 continents.
A.
To accept
B.
Having accepted
C.
To be accepted
D.
Accepting
【单选题】To be elected to the Senate a person must______.
A.
be at least 25 years old
B.
be at least 30 years old
C.
have been a citizen for seven years
D.
be a lawyer
【单选题】Which of the following did the woman NOT mention about the production of the armchairs?
A.
Time.
B.
Labor.
C.
Technology.
【单选题】The lazy boy ate the _____ food, but did the _____ work. [ ]
A.
most, most
B.
least, least
C.
least, most
D.
most, least.
【单选题】Which of the following does the passage mention as necessary for both the production of oxygen by photodissociation and the production of oxygen by plants?
A.
Water
B.
Hydrogen
C.
Carbon dioxide
D.
Nitrogen
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