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【单选题】
在NPN型晶体三极管放大电路中,如果基极与发射极短路,下列哪种说法正确()。
A.
晶体三极管将深度饱和
B.
晶体三极管理将截止
C.
晶体三极管理的集电结将是正偏
D.
晶体三极管理发射结将反偏
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正确
B.
错误
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A.
In it, there appeared the first modern short stories in America.
B.
It is the first work by an American writer to win financial success on both sides of the Atlantic.
C.
It includes Irving’s famous stories “The Legend of Sleepy Hollow” and “Rip Van Winkle”.
D.
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A.
政治风险
B.
购买力风险
C.
利率风险
D.
经营风险
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A.
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B.
信用风险
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A.
To a bank.
B.
To the embassy.
C.
To a service center.
D.
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【单选题】The assetsection of the January 1, 20X9, balance sheet of Big Valley Company includes amachine which was acquired on January 1, 20X5. The machine's original cost was $500,000, and the estimated life w...
A.
$500,000
B.
$450,000
C.
$250,000
D.
$300,000
【单选题】汤卤是决定卤菜()的关键性因素。
A.
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B.
色、味、质
C.
色、香、味
D.
色、香、形
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