My father would like a big toy animal.[ ]
A. buy
B. buys
C. buying
D . to buy
答案:D
诊断隐孢子虫病最常用、最可靠的检查是()
A.血清学检查
B.血常规
C.十二指肠引流物中查找隐孢子虫卵囊
D.粪便查找隐孢子虫卵囊
E.大便常规
调压器室与毗连房间之间应用实体墙隔开,隔墙厚度不应小于()cm。
A.12
B.24
C.36
D.50