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【单选题】
下图所示为三极管的输出特性。该UCE=6V,IC=3 mA处电流放大倍数β 。
A.
60
B.
80
C.
100
D.
10
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【判断题】T he sad young men and the lost generation refer to the same group of people.
A.
正确
B.
错误
【单选题】Usually people can't feel the change of the society. From generation to generation we live in the same frame. of family and structure and society. But as a matter of fact, the change of the society is...
A.
The economic development of the United States in the eighteenth century.
B.
Ways in which economic development led to social changes in the United States.
C.
Population growth in the western United States.
D.
The increasing availability of industrial jobs for women in the United States.
【单选题】tan300°+cot405°的值是(   )
A.
1+
B.
1-
C.
-1-
D.
-1+
【单选题】tan(405°)=?
A.
tan45°
B.
-tan45°
C.
-1
D.
/2
【简答题】计算:2sin2225°-cos300°tan405°(拍照上传答案)
【单选题】目前已知药力最强的致幻剂,别名LSD的是
A.
开心水
B.
神仙水
C.
γ-羟基丁酸
D.
麦角酸二乙胺
【单选题】“The Lost Generation” does not refer to______
A.
Ernest Hemingway
B.
John Dos Passos
C.
Eugene Glastone O’Neill
D.
F.Scott Fitzgerald
【简答题】Generation X, a term generally used to refer to people born in 1960s through the early 1980s. This generation, marks the period of __________ after the baby boom.
【单选题】众多种类的毒品之中有很多的致幻类药品,这其中有迷幻剂药物的代表,它是已知药力最强的致幻剂。它是( )。
A.
K粉
B.
三唑伦
C.
麦角酰二乙胺
D.
可卡因
【简答题】Generation Z refer to those born in .
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