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【单选题】
异步电机能耗制动的方法就是在切断三相电源的同时( )A.
给转子绕组中通入交流电
B.
给转子绕组中通入直流电
C.
给定子绕组中通入交流电
D.
给定子绕组中通入直流电
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举一反三
【简答题】中国古典园林的三个源头包括___________、___________和___________。
【单选题】There will be a live game between American Venus Williams and her young sister Serena. I you to watch it on TV. [ ]
A.
suggest
B.
advise
C.
hate
D.
avoid
【简答题】从精神层面上来说,中国古典园林的萌芽和起源主要有三个因素:即 思想、 思想和神仙思想。
【单选题】Unity编辑器中的哪个窗口用于显示当前所选游戏对象的相关属性与信息?
A.
场景视图(Scene)
B.
检视面板(inspector)
C.
项目窗口(Project)
D.
层级视图(hierarchy)
【单选题】When Brickland and her sister were little, they kept the home key because ______.
A.
they wanted to be trusted
B.
their mother had to work
C.
their mother didn't live at home
D.
they were very naughty and wild
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