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【单选题】
企业的原材料等物资所占用的资金形态为★
A.
货币资金形态
B.
储备资金形态
C.
生产资金形态
D.
成品资金形态
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【单选题】The Lakers' forward Kobe Bryant has scored 50 or more points in four straight games, second in the NBA only to Wilt Chamberlain's seven. He also now is tied with Michael Jordan for second with four be...
A.
Kobe Bryant is the second in the NBA for what he got 50 or more points in four games.
B.
Wilt Chamberlain used to get 60 or more points in seven straight games, first in the NBA.
C.
Michael Jordan is in the third place with four behind Chamberlain's 32 in most 60-point games.
D.
Michael Jordan is equal to Kobe Bryant in most 60-point games.
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【单选题】Do you remember the popular singer __________ long straight hair?
A.
has
B.
is
C.
looks like
D.
with
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【简答题】若图3(b)中I=-2A,R=3Ω,则U=?
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【单选题】—I believe we will have a good time with Miss Green in your birthday party.
A.
aybe. But it is still a question, you know, _______ she can spare time to come.
B.
whether
C.
where
D.
that
E.
which
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【简答题】已知 下图 所示电路中 V CC =12V , R C =3K Ω,静态管压降 U CEQ =6V , 并在输出端加负载电阻 R L ,其阻值为 3 KΩ。选择一个合适的答案填入空内。 (1) 该电路的最大不失真输出电压有效值 U om ≈ ( ) ; A.2V B.3V C.6V (2) 当 U i =1mV时,若在不失真的条件下,减小 R w ,则输出电...
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【单选题】How long was the journey home for the Polos?
A.
four years
B.
three years
C.
twenty-four years
D.
five years
查看完整题目与答案
【简答题】图示电路中Vcc=12V,Rc=3kΩ,静态管压降 V CEQ =6V,并在输出端加负载 R L =3kΩ。选择一个合适的答案填入空内。 (1)该电路的最大不失真输出电压幅值 U om = A. 2V B. 3V C. 6V (2)当 U i =1mV时,若在不失真的条件下,减小 R W ,则输出电压的幅值将 A. 减小 B.不变 C.增大 (3) 当 U i =1mV时,...
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【简答题】下图中,Vcc=12V, R b ’ =100kΩ,放大倍数 b=100 ,并记 R b = R b ’ + R w ,问: (1)当输入电压 u i =0时,测得 U BEQ =0.7V, U CEQ =6V,若要基极电流 I BQ =20μA,则: 1 R b 的值约为 R b ≈ kΩ(值取整数) ; 2 R c 的值约为 R c ≈ kΩ (值取整数) . (2)若测得输入电压有效值 u ...
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【单选题】如图所示电路中,若U=6V,R=3Ω,则I=__A
A.
2
B.
-2
C.
6
D.
-6
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【简答题】在图示电路中 , 已知 V CC =12V, 晶体管的 b = 5 0, R b =100kΩ , R c =1kΩ , 忽略 U BE 。 求 :(1) 画出直流通路 ; (2) 估算静态工作点 I BQ 、 I CQ 和 U CEQ ; ( 3 ) 若测得输入电压有效值 U i=5mV 时 , 输出电压有效值 U O =0.6V, 则电压放大倍数 A U =?
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相关题目：
【单选题】The Lakers' forward Kobe Bryant has scored 50 or more points in four straight games, second in the NBA only to Wilt Chamberlain's seven. He also now is tied with Michael Jordan for second with four be...
A.
Kobe Bryant is the second in the NBA for what he got 50 or more points in four games.
B.
Wilt Chamberlain used to get 60 or more points in seven straight games, first in the NBA.
C.
Michael Jordan is in the third place with four behind Chamberlain's 32 in most 60-point games.
D.
Michael Jordan is equal to Kobe Bryant in most 60-point games.
查看完整题目与答案
【单选题】Do you remember the popular singer __________ long straight hair?
A.
has
B.
is
C.
looks like
D.
with
查看完整题目与答案
【简答题】若图3(b)中I=-2A,R=3Ω,则U=?
查看完整题目与答案
【单选题】—I believe we will have a good time with Miss Green in your birthday party.
A.
aybe. But it is still a question, you know, _______ she can spare time to come.
B.
whether
C.
where
D.
that
E.
which
查看完整题目与答案
【简答题】已知 下图 所示电路中 V CC =12V , R C =3K Ω,静态管压降 U CEQ =6V , 并在输出端加负载电阻 R L ,其阻值为 3 KΩ。选择一个合适的答案填入空内。 (1) 该电路的最大不失真输出电压有效值 U om ≈ ( ) ; A.2V B.3V C.6V (2) 当 U i =1mV时,若在不失真的条件下,减小 R w ,则输出电...
查看完整题目与答案
【单选题】How long was the journey home for the Polos?
A.
four years
B.
three years
C.
twenty-four years
D.
five years
查看完整题目与答案
【简答题】图示电路中Vcc=12V,Rc=3kΩ,静态管压降 V CEQ =6V,并在输出端加负载 R L =3kΩ。选择一个合适的答案填入空内。 (1)该电路的最大不失真输出电压幅值 U om = A. 2V B. 3V C. 6V (2)当 U i =1mV时,若在不失真的条件下,减小 R W ,则输出电压的幅值将 A. 减小 B.不变 C.增大 (3) 当 U i =1mV时,...
查看完整题目与答案
【简答题】下图中,Vcc=12V, R b ’ =100kΩ,放大倍数 b=100 ,并记 R b = R b ’ + R w ,问: (1)当输入电压 u i =0时,测得 U BEQ =0.7V, U CEQ =6V,若要基极电流 I BQ =20μA,则: 1 R b 的值约为 R b ≈ kΩ(值取整数) ; 2 R c 的值约为 R c ≈ kΩ (值取整数) . (2)若测得输入电压有效值 u ...
查看完整题目与答案
【单选题】如图所示电路中,若U=6V,R=3Ω,则I=__A
A.
2
B.
-2
C.
6
D.
-6
查看完整题目与答案
【简答题】在图示电路中 , 已知 V CC =12V, 晶体管的 b = 5 0, R b =100kΩ , R c =1kΩ , 忽略 U BE 。 求 :(1) 画出直流通路 ; (2) 估算静态工作点 I BQ 、 I CQ 和 U CEQ ; ( 3 ) 若测得输入电压有效值 U i=5mV 时 , 输出电压有效值 U O =0.6V, 则电压放大倍数 A U =?
查看完整题目与答案