Peter will give me five sweets        an apple, but in fact I don’t have a sweet tooth.                          

A．in search of

B．in need of

C．in case of

D．in exchange for

90%以上的金黄色葡萄球菌都具有的抗原是（）

A.SPA

B.PBS

C.CTL

D.LPS

E.鞭毛抗原