Jim has _______ friends at school, but he doesn't have _______ at home.[ ]

A. some; some  

B. any; any        

C. some; any    

D. any; some

以下哪一种粘附分子属于整合素家族()

A.ICAM-1 

B.LFA-1 

C.LFA-2 

D.LFA-3 

E.ICAM-2