【单选题】两耦合电感串联接在某正弦电压源上,已知L1=0.8H,L2=0.7H,M=0.5H,电阻不计,正弦电压源的电压有效值不变,则两者反向串联时的电流为顺向串联时电流的__倍。
【单选题】Which of the following may be the best title for the passage?
A.
When Was the Umbrella Invented
B.
The Role of Umbrella in History
C.
The Colors and Shapes of Umbrella
D.
Who Needed Umbrella First
【单选题】Which of the following statements is the best title of the passage?
A.
When Was the Umbrella Invented?
B.
The History of Umbrella
C.
Umbrella—A Symbol of Honor
D.
Who Used Umbrella First?
【单选题】两耦合电感串联接在某K弦电压源上,已知L1=0.8H,L 2=0.7H,M=0.5H,电阻不计,正弦电压源的电压有效值不变,则两者反向串联时的电流为正向串联时电流的( )倍。
【单选题】Which of the following statements is not true about the umbrella?
A.
The umbrella was first invented to be used as protection against the sun.
B.
The umbrella changed much in style. in the eighteenth century.
C.
No one exactly knows who was the inventor of the umbrella.
D.
In Europe, the Greeks were the first to use the umbrella.
【单选题】Which of the following is the best title for the passage?
A.
The Invention of Umbrella.
B.
The History of Umbrella.
C.
Umbrella — A Symbol of Honor.
D.
Who Used Umbrella First?
【单选题】两耦合电感串联接在某正弦电压源上,已知L1=0.8H, L2=0.7H, M=0.5H, 电阻不计,正弦电压源的电压有效值不变,则两者反向串联时的电流为顺向串联时电流的( )倍。
【简答题】(P49) 【何其】衰也。 2.(P50) 【举】天下之豪杰,莫能与之争。 3.(P50) 祸患常积于【忽微】。 4.(P52) 即彼成我败所由【判】也。 5.(P52) 而顺逆两境又常相间以【迭乘】。
【单选题】甲公司严重资不抵债,因不能清偿到期债务向法院申请破产。下列财产属于债务人财产的是( )。
D.
甲公司根据代管协议合法占有的委托人丙公司的两处房产
【单选题】第七章选择题 1-2 两耦合电感串联在某正弦电压源上,已知 L 1 =0.8 H, L 2 =0.7 H, M=0.5 H,电阻不计,正弦电压源的电压有效值不变,则两者反向串联的电流为正向串联时电流的( )倍。