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【单选题】
已知一幅机械加工图纸的绘图比例是2：1，请问视图中尺寸标注的高度为56mm，则该产品的实际高度为（）A.
42mm
B.
168mm
C.
56mm
D.
84mm
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举一反三
【单选题】—How are you going to the train station to meet your aunt? —I’m going there ________ my car. [ ]
A.
by
B.
in
C.
to
D.
on
【单选题】---When are you going to travel to Beijing? ---The train ______ at six tomorrow morning, and I _______ for the station at four o’clock.
A.
leaves, leaves
B.
is going to leave, am going to leave
C.
is going to leave, leaves
D.
leaves, am going to leave
【单选题】按TSGT5001-2009《电梯使用管理与维护保养规则》规定，电梯维保单位应当建立每部电梯的维保记录，并且归入电梯技术档案，档案至少保存（）年。
A.
2
B.
3
C.
4
D.
5
【单选题】—Are you going to Beijing _____ plane? —No. I'm going there _____ a train. It takes only four hours. [ ]
A.
by, by
B.
by, on
C.
on, on
D.
on, by
【单选题】---Do you prefer _______ to Beijing by air? ---I would rather _______ a train.
A.
going, to take
B.
going, to take
C.
to go, take
D.
to go, to take
【简答题】What is the second problem? ______.
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