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【简答题】
Fill in the blanks with words that are often confused. 1. attitude, aptitude A. Does she show any __________for music? B. He shows a very positive____________ to his work. 2. require, acquire A. To remove any ambiguity we have to _______________more accurate information. B. If you ____________further information, you should consult the registrar. 3. search, research A. The new law empowered the police to_____________ private houses. B. Recent_______________ has cast new light on the causes of the disease.
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皮皮学刷刷变学霸
举一反三
【简答题】模板形式都有哪些?各自的特点及优缺点是什么? 2.模板有哪些作用?一般由那几部分组成?对模板及支架有哪些要求?
【简答题】( )即针对实际情况为实现目标而采取的处理办法。
【单选题】At what frequency will the output voltage v o ( t) in Fig.6.1 be equal to the input voltage v(t) :
A.
50Hz
B.
1 Hz
C.
0 Hz
D.
∞Hz
【单选题】The diodes in the circuit are ideal. Given that u i = 6 sin ωt V 时, Find the maximum output voltage u o ( ).
A.
+1V
B.
+4V
C.
+6V
D.
+2V