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【单选题】
经常通行机动车的园路宽度应大于 转弯半径不得小于12m。
A.
1m
B.
2m
C.
3m
D.
4m
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参考答案:
举一反三
【单选题】作为综合布线连接地系统中接地干线及设备接地线的转接点是( )
A.
接地线
B.
接地母线
C.
接地干线
D.
主接地母线
【单选题】Most environmental problems exist because adequate measures for preventing them ______ taken in the past.
A.
was not
B.
were not being
C.
were not
D.
being not
【单选题】综合布线系统中各种设备与接地母线之间的连线是( )
A.
接地线
B.
接地母线
C.
接地干线
D.
主接地母线
【判断题】电气防护是指综合布线系统应尽量不受电气故障的影响,接地是为了保护系统中的设备电子线路不受电磁干扰的影响,防火则是为了防止火灾对系统造成的破坏。
A.
正确
B.
错误
【简答题】Which of the following measures of profits is most likely necessary for a firm to stay in business in the long run? A.normal B.economic C.accounting
【单选题】According to the passage, the comfort zone for most African people ______.
A.
measures about 21 inches
B.
varies from person to person
C.
implies respect
D.
is regulated by status
【单选题】Most ______ measures involve data encryption and password.
A.
security
B.
hardware
C.
display
D.
program
【单选题】When moist air moves over a cooler surface, then ( ) may occur.
A.
Advection fog
B.
Radiation fog
C.
Frontal fog
D.
Steam fog
【单选题】Most environmental problems exist because adequate measures for preventing them _________ taken in the past.
A.
was not
B.
were not
C.
were not being
D.
being not
【简答题】垂直子系统和水平干线子系统连接地系统称为 _ _____ ,该系统通常由通信线路互联设施和设备组成 .____ ____ 是综合布线系统地管理中枢,整个建筑物或大楼地各种信号都经过各类通信电缆汇集到该子系统 . xHA
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