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【简答题】
( )是确定公差带相对零线位置的那个极限偏差。它可以是上偏差或下偏差,一般为靠近零线的那个偏差
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【简答题】A．He was housed by Emma Thompson five years ago. B．He has graduated from an England university. C．He has become a British citizen. D．He will be 15 years old in April.
【简答题】已知电路如图所示，R 1 =10Ω，R 2 =40Ω，R L =10Ω，L 1 =5H，L 2 =1H，M=0.5H， ，ω=100rad/s，试求 和 。
【单选题】(Even though) Sedat (has been studying) English for three years before he came (to the United States), It is still difficult for him (to express himself).
A.
Even though
B.
has been studying
C.
to the United States
D.
to express himself
【简答题】已知电路如图a所示，U S =48V，R 1 =2Ω，R 2 =R 4 =3Ω，R 3 =6Ω，R L =5Ω，试用戴维南定理求解I O 。
【简答题】根据短文后所给的任务，完成小题. Now the idea of “car sharing” has become popular in Europe and the United States. That’s to say, people share（分享） one car, not each person has one . (65) As we know, most cars are par...
【简答题】已知电路如图a所示，R 1 =1Ω，R 2 =2Ω，R 3 =3Ω，R 4 =4Ω，R L =5Ω，U S =15V，试用戴维南定理求电阻R中的电流I。
【简答题】电路如图所示。已知 RL= 5Ω,试求电路中的电流 I 。
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