猪带绦虫病的诊断方法主要是()
A.粪便直接涂片法查虫卵
B.饱和盐水漂浮法查虫卵
C.粪便水洗沉淀法查虫卵
D.检获粪便中的孕节,观察子宫侧枝数
E.以上均是
参考答案:D
I am sure David will be able to find the library-he has a pretty good___ of direction.
A.idea
B.feeling
C.experience
D.sense
石斛的药用部位为()
A.根
B.茎
C.根茎
D.鳞茎
E.块茎