In China today women ___ 40% of the workforce, and nearly half of the others with children are   in paid work.

A．build up

B．hold on

C．make up

D．stand for

卵巢囊性肿物，其直径为多少时需手术治疗（）。

A.>4cm

B.>5cm

C.>6cm

D.>7cm

E.>8cm