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问题 单项选择题 A1/A2型题

对病毒体最正确的叙述是（）。

A.可独立存在于细胞外的病毒颗粒

B.有感染性的病毒颗粒

C.有刺突的包膜病毒颗粒

D.脱壳后仍有感染性的病毒核酸

E.成熟的、完整的、具有感染性的病毒颗粒

答案

参考答案：E

改错题

One afternoon,when I was on my way home, the sky 小题1:              

changed suddenly.Dark cloud were gathering. I began     小题2:              

to feel worrying because I didn’t have either a raincoat    小题3:             

or umbrella.It soon started to rain heavily                小题4:              

Just as I was hurrying home,I heard of someone calling  小题5:              

me from behind.I turned to have a look and find that       小题6:              

it was Jasime,a good neighbor of my,He immediately      小题7:              

offrerd to share his umbrella with me.We walked all      小题8:              

the way home.With Jasime’s help,I would have got        小题9:              

wet to the skin. How much thankful I was for his help!     小题10:
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单项选择题

病毒性心肌炎出现心力衰竭时，强心剂的用量是常规量的()

A．3倍

B．2倍

C． 1倍

D． 1/2～2/3

E．1/4～1/3
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