She wondered            .    [ ]

A. how much he cost the computer    

B. how much he paid for the computer    

C. how much the computer will cost him    

D. how much he spends on the computer

糖皮质激素抗毒作用机制是（）

A.对抗细菌外毒素

B.中和细菌内毒素

C.提高机体对细菌内毒素的耐受力

D.加速细菌内毒素的排泄

E.加速机体对细菌外毒素的代谢