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
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若某企业的速动比率为2,流动负债为160万元,存货200万元,则相应的流动比率为()
城乡规划实施中,维护公民、法人和社会团体利益的最后保障是()。
1 will never forget the ten years ________ we both spent in the little village.
A. when B. during which C. which D. in which
To solve the problem of dry mouths, one is advised to take cool milk.
A. Right B. Wrong C. Not mentioned