女性输尿管的盆段在进入膀胱前，跨其前上方者为( )

A．髂内血管

B．卵巢血管

C．子宫动脉

D．闭孔神经

E．闭孔血管

65. Wit a large amount of work _______, the chief manager couldn’t spare time for a holiday.

A．remained to be done

B．remaining to be done

C．remained being done

D．remaining to do