—How is he getting on with his spoken English?

—Great. Now he can speak English _____ his English teacher. [ ]

A. as good as

B. as better as

C. as many as

D. as well as

测量超细干粉灭火剂斥水性需要哪些试剂、仪器（）。

A.氯化钠

B.天平

C.培养皿

D.吸量管

E.干燥器