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【单选题】
非磁性是一种不易磁化的，其用途是为( )提供一个不受磁场影响的测量环境。A.
虹吸测斜仪器
B.
陀螺测斜仪器
C.
非磁性测斜仪器
D.
磁性测斜仪器
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举一反三
【单选题】Most environmental problems exist because adequate measures for pring them ______ taken in the past.
A.
was not
B.
were not being
C.
were not
D.
being not
【单选题】When moisture air moves over a cooler suce, then may occur.
A.
advection fog
B.
radiation fog
C.
frontal fog
D.
steam fog
【单选题】Most(75)measures involve data encryption and password.
A.
security
B.
hardware
C.
display
D.
program
【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 suce, 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 pring 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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