皮皮学，免费搜题
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搜题
【单选题】
在使用椭圆选框工具时,要在现有选区基础上增加选区,可按住( )键进行操作。A.
Shift
B.
Alt
C.
Alt+Shift
D.
Ctrl+Shift
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】三相异步电动机在什么情况下会出现转差率s<1,是< /div>
A.
再生制动
B.
能耗制动
C.
反接制动
D.
机械制动
【判断题】Beijing Opera came into being as a result of the classes from Anhui province constantly cooperating with artists in Han accent from Hubei opera.
A.
正确
B.
错误
【简答题】As a Beijing Opera actor, he is a great success ._________________________________________ Evidently all this talk caused him embarrassment ._______________________________________
【判断题】Beijing Opera, as its name suggests, originated in Beijing but borrowed a lot from " Hui Tune".
A.
正确
B.
错误
【单选题】The program deals with subjects as ( ) as pop music and Beijing Opera.
A.
ideal
B.
diverse
C.
superficial
D.
exceptional
相关题目：
【单选题】三相异步电动机在什么情况下会出现转差率s<1,是< /div>
A.
再生制动
B.
能耗制动
C.
反接制动
D.
机械制动