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【单选题】
某点在中央子午线的精度为117°的6°投影带内,且位于中央子午线以西1006.45m,该点横坐标的自然值
A.
1006.45m
B.
-1006.45
C.
20498993.55
D.
20501006.45
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【单选题】平面四杆机构存在曲柄的条件中,曲柄为最短构件,最短与最长构件长度之和()其他两构件长度之和。
A.
大于或等于
B.
小于或等于
C.
小于或大于
D.
等于
【单选题】在CRT/ MDI面板的功能键中, 用于刀具偏置数设置的键是
A.
POS
B.
OFSET
C.
PROG
D.
ALARM
【单选题】根据以下资料,回答下列各题。 It is widely known that any English conversation begins with The Weather.Such a fixation with the weather finds expression in Dr.Johnson’s famous comment that “When two English meet, th...
B.
Dr.Johnson is famous for his weather observation
C.
the comment was accurate two hundred years ago
D.
English conversations usually start with the weather
【单选题】在CRT/MDI面板的功能键中,用于刀具偏置数设置的键是( )。
A.
POS
B.
OFSET
C.
PRGRM
D.
ALARM
【单选题】平面四杆机构存在曲柄的条件中,曲柄为( )构件,最短与最长构件长度之和( )其它两构件之和
A.
最长;大于或等于
B.
最短;大于或等于
C.
最长;小于或等于
D.
最短;小于或等于
【单选题】Ted, there’s a boy at front door who says he has news for you.
A.
the; /
B.
the; the
C.
/ ; the
D.
/ ; /
【单选题】在CRT/MDI面板的功能键中,用于刀具偏置的健是()
A.
POS
B.
OFFESET
C.
PROG
D.
SYSTEM
【单选题】在 CRT/MDI 面板的功能键中,用于刀具偏置数设置的键是
A.
A . POS
B.
OFSET
C.
PRGRM
【单选题】It is widely reported in the western media that the drug ______ is now becoming a leading cause of teenager crimes.
A.
adoption
B.
abuse
C.
appreciation
D.
appeal
【单选题】The term 'disruptive technology' is popular, but is widely misused. It refers not simply to a clever new technology, but to one that undermines an existing technology, and which therefore makes life v...
A.
states the popularity of the term
B.
indicates a clever new technology
C.
undermines an existing technology
D.
corrects a misconception
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