-Why didn’t you go to the party ?

_______ an invitation, I would have gone to the party .

A．Had I received

B．If I received

C．If I should receive

D．Were I to receive

粪便显微镜白细胞检验，错误的是

A．正常粪便中可见较多白细胞

B．主要是中性粒细胞

C．钩虫病时，粪便中可见较多的嗜酸粒细胞

D．阿米巴痢疾时，粪便中可见较多的嗜酸粒细胞

E．过敏性肠炎时，粪便中可见较多的嗜酸粒细胞