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【单选题】
牙齿干燥者()A.
热盛伤津
B.
阳明热盛
C.
肾阴枯涸
D.
脾胃湿热
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皮皮学刷刷变学霸
举一反三
【简答题】Within EU primary education, a clear majority of pupils choose to study English like a foreign language. Indeed, learning English is mandatory in several【M1】______ countries within secondary education...
【单选题】تەبىئەت 这个词音节的正确划分是 ( )
A.
تەبىئەت = تە+ﺑـىـ +ﯭت
B.
تەبىئەت = ت+ەﺑـىـ +ﯭت
C.
تەبىئەت = تەﺑـ+ىـ +ﯭت
D.
تەبىئەت = تە+ﺑـىـﯭ +ت
【判断题】已知: u 1 =(10 cos w t +5 cos 3 w t )V , u 2 =[10 cos w t +5 cos (3 w t + p )]V ,这两个非正弦电压的基波分量与三次谐波分量的振幅分别相等,因此, u 1 与 u 2 的有效值相等,二者的峰值也相等。
A.
正确
B.
错误
【简答题】Over 60﹪of pupils in South African schools choose English for learning and teaching, but only 7﹪of pupils speak English as their home language, a recent South Africa survey shows. Out of the country’s...
【单选题】已知两正弦电压: u 1 =10cos ( 100t+45 0 ) V , u 2 =2sin ( 100t+45 0 ) V ,则 u 1 与 u 2 的相位差为( )。
A.
0 0
B.
90 0
C.
180 0
D.
- 90 0
【单选题】_______ interesting it is to talk with some American pupils in English!
A.
How
B.
How an
C.
What
D.
What an
【简答题】Look, the pupils ________ (have) an English class.
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