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4.在等差数列{an}中,a4+a6+a8+a10+a12=120,则a9a11的值为     

A.14      B.15      C.16         D.17

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3.若,且是第四象限的角,则

    A.        B.        C.         D.

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2.已知集合,

A.    B.     C.   D.

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1.已知是虚数单位,则在复平面内,复数所对应的点位于      

A.第一象限     B.第二象限    C.第三象限    D.第四象限

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  It was 7:15 in the morning of February 8, 2007.I was
76.      
walking along Park Road towards the east while an
77.      
old man came out of the park on the other sides of the
78.      
street.Then I saw a yellow car to drive up and make a right
79.      
turn into Park Road.Then the car hit the man while she
80.      
was crossing the road.He fall with a cry.The car drove off
81.      
at full speed heading west.I noticed the driver was old woman
82.      
worn a pair of glasses and the plate number was AC864.
83.      
After two minutes ,I tried to stop a passing car
84.      
 and took the old man to the near hospital.
85.      

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