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【单选题】
在光伏系统的设计中,可能出现的阴影包括( )。A.
随机阴影
B.
系统阴影
C.
A 和 B 都对
D.
以上都不对
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反馈参考答案：
举一反三
【单选题】They are the heirs ___________. a) who have priorities over others b) who have the legal right to receive the property, money or title.
A.
who have priorities over others
B.
who have the legal right to receive the property, money or title.
【简答题】在图所示放大电路中，已知三极管3DG4的β=80，r b =300Ω。
【单选题】- The girl __all her pocket money to the people in the Southwest for the serious drought(旱灾). - What a good girl!
A.
took away
B.
gave up
C.
gave away
【单选题】They are the heirs ___________. a) who have priorities over others b) who have the legal right to receive the property, money or title.
A.
a) who have priorities over others
B.
b) who have the legal right to receive the property, money or title.
【单选题】在图中所示放大电路,已知Ucc=6V、Rc=2KΩ、RB=200KΩ、β=50。放大电路的静态工作点为( )。
A.
30μA
B.
1.5mA
C.
3mA
D.
1mA
【单选题】在图中所示放大电路,已知Ucc=6V、Rc=2KΩ、RB=200Kω、β=50。放大电路的静态工作点为( )。
A.
mg src="http://p.ananas.chaoxing.com/star3/origin/817ef654113361adc41e6c385a0498a4.jpg">
B.
30μA
C.
1.5mA
D.
3mA
E.
1mA
【简答题】something such as money or property that a person or company owns
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