确诊寄生虫病的主要实验室检查方法是（）
A.病原学检查
B.活组织检查
C.分子生物学检查
D.动物接种
E.免疫学检查
参考答案：A
The girl is reading a book under the tree is my sister. [ ]
A. who
B. whose
C. which
D. whom
—Where do you work ?
—_________.[ ]
A. I work in a school
B. I am a teacher
C. I want to be a teacher
D. I go to school every day
