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【单选题】
列车在区段内运行，不包括中间站停站时间及加减速附加时分在内的平均速度称为（ ）。A.
列车运行速度
B.
列车技术速度
C.
列车旅行速度
D.
列车直达速度
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【单选题】One advantage of owning your own car is you can go anywhere at any time you like．
A.
when
B.
why
C.
what
D.
that
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