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【单选题】
如果要更新设备的驱动程序,下列条件中不是升级驱动程序必须的是A.
所有驱动程序必须是最新的
B.
驱动程序必须适合硬件使用
C.
驱动程序必须适合该计算机的操作系统使用
D.
所用驱动程序必须比原来版本高
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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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