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【简答题】
零担货物运输的特点表现在 _____、_____、_____、_____、运输安全迅速方便。
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举一反三
【单选题】The girl told her mother that she would give her a call______ her arrival.
A.
upon
B.
at
C.
with
D.
in
【简答题】It was Mother's Day,but the young mother was a little unhappy,because she was 800 miles away from her parents.In the morning she phoned her mother to wish her a happy Mother's Day,and her mother told ...
【简答题】视频片段中用来区分帧的时间标记叫做( )。通过它可准确定位视频片段中的每一帧并度量一个视频片段的持续时间。
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