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【单选题】
下面有关MOS晶体管阈值电压的说法不正确的是：A.
当源与体之间存在衬底偏置电压 VSB 时，将会使 n 沟 MOS 管的阈值电压增大。
B.
随着栅电压的不断提高，耗尽区宽度将逐渐增大。
C.
阈值电压通常对于 NMOS 器件是一个 正 值，对于 PMOS 器件是一个 负 值。
D.
p 型硅衬底的的典型值是 -0.3V 。
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举一反三
【单选题】Three pencils cost the same as two erasers. Four erasers cost the same as one ruler. Therefore, pencils are more expensive than rulers
A.
Ture
B.
False
C.
Uncertain
【单选题】Three pencils cost the same as two erasers. Four erasers cost the same as one ruler. Therefore, pencils are more expensive than rulers.
A.
True
B.
False
C.
Uncertain
【简答题】心理过程可分为认识过程、情绪和情感过程及___________过程,三者之间既有区别又相互联系。
【简答题】Three pencils cost the same as two erasers. Four erasers cost the same as one ruler. Therefore, pencils are more expensive than rulers.
【判断题】Three pencils cost the same as two erasers. Four erasers cost the same as one ruler. Therefore, pencils are more expensive than rulers .
A.
正确
B.
错误
【单选题】Three pencils cost the same as two erasers. Four erasers cost the same as one ruler. Therefore, pencils are more expensive than rulers.
A.
true
B.
false
C.
uncertain
D.
...
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