金黄色葡萄球菌产生的酶和毒素不包括（）
A.血浆凝固酶
B.α－溶血素
C.杀白细胞素
D.内毒素
E.肠毒素
参考答案：D
The boy was badly hurt in his head, however, still .
A．living
B．alive
C．live
D．dying
Bill and Tom often have chicken _____ lunch. [ ]
A. at
B. of
C. for
D. in
