Statistics show that house prices in the last 2 years have risen      they had expected.

A．twice as much as

B．as much as twice

C．as twice much as

D．as much twice as

复发性单纯疱疹病毒性角膜炎的临床表现为（）

A.树枝状和地图状角膜炎

B.滤泡性结膜炎

C.眼睑皮肤疱疹

D.唇部和皮肤单疱感染