以下关于硬骨鱼类嗜中性粒细胞的描述，不正确的是（） A.吞噬能

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问题单项选择题 A1型题

以下关于硬骨鱼类嗜中性粒细胞的描述，不正确的是（）

A.吞噬能力比单核细胞强

B.胞内颗粒为晶体样或纤维样

C.有活跃的吞噬和杀伤能力

D.刺激后发出化学发光性和趋化性

答案

参考答案：A

选择题

They ______ on the program for almost one week before I joined them, and now we _____on it as no good results have come out so far.

A．had been working; are still working

B．had worked; were still working

C．have been working; have worked

D．have worked; are still working

单项选择题

易发生肠穿孔而致死的疾病是（）

A.阿米巴病

B.结核

C.菌痢

D.伤寒

E.血吸虫病