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【判断题】
坐标系是任何造型系统必不可少的要素,UG NX 的坐标系分为工作坐标系和绝对坐标系。工作坐标系是用户在建模的时候直接应用的坐标系,绝对坐标系是系统坐标系,可以有一个或多个绝对坐标系。A.
正确
B.
错误
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举一反三
【多选题】Words that signal additional information
A.
words, and
B.
furthermore, additionally, moreover
C.
too, in addition
D.
not only... but also
E.
as long as,besides
【单选题】To express the time order, many signal words can be used: For beginning events: we cannot use ______.
A.
first, firstly
B.
in the first place
C.
at the beginning
D.
at night
【简答题】请说明片剂含量均匀度测定初试方法?
【简答题】简述经济学家研究经济问题的三大基本动机是什么?
【判断题】Many signal words can give more than one kind of signals, but usually the context makes it immediately clear which signal is intended.
A.
正确
B.
错误
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