While the government says there is a(n) ________supply of houses, prices of apartments have been

going up these years.[ ]

A. parallel  

B. absent

C. abundant    

D. short

下列哪种方法不能矫治散光（）

A.硬性角膜接触镜 

B.表面角膜镜片术 

C.准分子激光角膜切削术 

D.准分子激光角膜原位磨镶术 

E.白内障摘除人工晶状体植入术