There is much chance_________ Bill will recover from his injury in the time for the race.   [ ]

A that      

B. which    

C.until    

D.if

在外力作用下，当铆接件的本身强度小于铆钉强度时，铆接件的钉孔容易被（）.

A.拉长

B.弯曲

C.压缩