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【简答题】
Please read para.1-3 and answer the following questions: What phenomenon did the author describe in this part? More and more students choose to study _________________ .The humanities now play _________________ roles in university.
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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】With a negative feedback, the voltage gain will be ( )
A.
increased
B.
decreased
C.
unchanged
【单选题】If you want to stabilize the output voltage, and increase the input resistance , you should apply a ( ) negative feedback to your amplification circuit
A.
voltage-shunt
B.
current-shunt
C.
voltage-series
D.
current-series
【单选题】“资金结存”科目核算政府单位纳入部门预算管理的资金的流入、流出、调整和滚存等情况,该科目属于政府单位会计的( )要素。
A.
资产
B.
预算结余
C.
净资产
D.
预算收入
【单选题】Negative voltage feedback _______
A.
increases A v
B.
decreases bandwidth
C.
decreases A v
D.
increases A i
【单选题】when ac voltage is negative, Which diodes are on state?
A.
A and B
B.
C and D
C.
A and C
D.
B and D
【单选题】Negative voltage feedback ( ).
A.
increases
B.
decreases bandwidth
C.
decreases
D.
increases
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