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【单选题】
下面几项关于精密水准测量的误差来源中, ( ) 不属于系统误差。A.
视准轴、水准轴不平行误差
B.
水准标尺长度误差
C.
标尺零点误差
D.
观测误差
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反馈参考答案：
举一反三
【简答题】传输协议可以采用丢包恢复、____和____等基本机制来实现可靠传输。
【单选题】Most people prefer to travel on ______train, because you can have a comfortable journey, but make sure you get ______fast one．
A.
the ; the
B.
a ; the
C.
the ; a
D.
不填；a
【简答题】A．Because most Japanese people prefer to see cherry flowers on TV. B．Because most Japanese people would rather go to see the flowers by themselves. C．Because the timing of these tours is not right. D．...
【单选题】Most British people prefer __________.
A.
White Tea
B.
Green Tea
C.
Black Tea
D.
Yellow Tea
【简答题】太极拳的技法特点是什么?
【单选题】Most people prefer _____money______it .
A.
spending; to earning
B.
to be spending ; to be earning
C.
to spend; to earn
D.
having spent; to having earned
【单选题】Nowadavs,most people,in order to keep fit,prefer walking to driving _________necessary.
A.
if
B.
unless
C.
in case
D.
as if
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