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题目内容
（安徽大学-会计学）
While _______ the sun, the satellite has sent more than four billion bits of information back to earth.
A、having orbited
B、 being orbited
C、 having been orbited
D、 orbiting
A、having orbited
B、 being orbited
C、 having been orbited
D、 orbiting
参考答案
