High school students are supposed to be     about public services，which will benefit them in the long run．

A．curious

B．anxious

C．particular

D．enthusiastic

外伤型骨化性肌炎X线片出现钙化的时间一般为（）

A.一周内

B.两周内

C.2～4周内

D.4～5周内

E.5～6周内