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【单选题】
与CRT显示器相比,LCD显示器有若干优点,但不包括________。A.
工作电压低、功耗小
B.
较少辐射危害
C.
不闪烁、体积轻薄
D.
成本较低、不需要使用显示卡
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举一反三
【单选题】The telephone __________ for almost a minute．Why doesn’t somebody answer it?
A.
has rung
B.
had rung
C.
has been ringing
D.
is ringing
【单选题】My telephone has rung so often today that it is becoming a(n) ______.
A.
interruption
B.
bore
C.
distress
D.
nuisance
【单选题】I was about to the phone when it was . [ ]
A.
reply; rung of
B.
receive; rung up
C.
answer; rung off
D.
answer; rung up
【单选题】The telephone __________ for almost a minute．Why doesn’t somebody answer it?A.has rung###
A.
The telephone __________ for almost a minute．Why doesn’t somebody answer it? A.has rung
B.
had rung
C.
has been ringing
D.
is ringing
【简答题】居住区绿地规划设计
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