— Will the computer help us learn?

— Yes, _______________.[ ]

A. it is

B. it does

C. it was

D. it will

脓液稀薄，量多，粉红色（）

A.金黄色葡萄球菌

B.溶血性链球菌

C.大肠杆菌

D.铜绿假单孢子菌

E.类杆菌