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5. When you read English stories you willoften find names such as Tom、John、Mary andJane.

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6. Keith Haring was born on May 4 1978.

7. Keith Brown lived in Colchester England in1989.

8. I like animals, I don’t want to see them put tosleep.

已知电路中有a，b两点，电压Uab=10V，a点电位为Va=4V，则b点的电位为Vb为。

A. 6V
B. -6V
C. 14V
D. -14V