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【单选题】
在 下 图中,已知三极管工作在放大区,测得各脚对地电位如图所示, 则电压为-9V对应的电极是( )。
A.
基极
B.
集电极
C.
发射极
D.
不能确定
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参考答案:
举一反三
【简答题】下列实验操作中错误的是 (   )
【单选题】Which of the following is NOT one of the great English speakers in the history of the last one hundred years?
A.
none of the above
B.
Martin Luther King.
C.
Adam Smith.
D.
Winston Churchil.
【简答题】下列实验操作中,错误的是
【多选题】建立平面控制网的方法有( )。
A.
A 、导线测量 B 、
B.
三角测量
C.
三边测量
D.
全球定位系统GPS测量
E.
高程测量
【单选题】The question of the duration of the transit ______ primarily one of the intention of the parties.
A.
takes
B.
is
C.
has
D.
makes
【单选题】静止流体 剪切应力。
A.
不能承受
B.
可以承受
C.
能承受很小的
D.
具有粘性是可承受
【简答题】下列实验操作中错误的是(     )
【简答题】Hiking is not only one of the best forms of physical exercise , but also one of the most forms of me ntal relaxation . It is good for all ages and is especially suitable as a family and group activity...
【多选题】下列对操作风险的理解中,错误的是(  )。
A.
操作风险就是柜台风险
B.
操作风险就是经营性的风险
C.
操作风险也存在于一些内部保障领域
D.
操作风险就是纯业务风险
【单选题】Of all the foods we know, fruit is one of the most healthful. It is also one of the most tasty foods. Almost everyone enjoys fruit. Fruit is grown in almost every part of the world. There are hundreds...
A.
Most people enjoy eating fruit.
B.
Fruit can be grown almost all over the world.
C.
There are less than a hundred kinds of fruits.
D.
There are three groups of fruits.
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