____________ you go with your sister last night?[ ]
A. Did
B. Do
C. Are
答案:A
Sarah hopes to become a friend of _____________ shares her interests.
A.anyone
B.whomever
C.whoever
D.no matter who
属于化学灭菌法的是()
A.辐射灭菌法
B.紫外线灭菌法
C.环氧乙烷灭菌法
D.热压灭菌法
E.火焰灭菌法