Korthof培养基是()
A.军团菌常用培养基
B.结核分枝杆菌常用培养基
C.霍乱弧菌常用培养基
D.真菌的标准培养基
E.钩端螺旋体常用培养基
参考答案:E
— __________ is it from Sunshine Town to the center of Beijing?
— It’s about 20 kilometers ________ our school.
A.How far, far from
B.How long, away from
C.How far, far away from
D.How far, away from
注射乙型肝炎疫苗属于
A.自然自动免疫B.人工自动免疫C.自然被动免疫D.人工被动免疫E.被动自动免疫