卵巢具有分泌（）的作用 A.雌激素 B.孕激素 C.雌激素和孕激素 D.雄激素

We can make a snowman ____________ a cake.[ ]

A. to eat

B. eating

C. eats

脾经湿热引起的前阴病，宜选用以下何方：

A．八正散

B．猪苓汤

C．龙胆泻肝汤

D．补中益气汤

E．萆薢分清饮

Quite a few problems_____ after the new examination system was introduced, and the number of students in this school _____by 5% Last year.

A．arose; raised

B．arose; rose

C．rose; raised

D．raised; rose

疝容物为部分肠管壁者为

A．Richter疝

B．滑动疝

C．Littre疝

D．闭孔疝

E．难复性疝

无线网络的优点及现使用中无线网络的标准？