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问题 单项选择题 A1/A2型题

以血红蛋白为基础的红细胞代用品不包括（）。

A.PEG修饰的人血红蛋白

B.表面聚氧乙烯结合的人血红蛋白

C.戊二醛交联的牛血红蛋白多聚体

D.Hemotech

E.Oxygent

答案

参考答案：E

改错题

My swimming experience is extreme interesting. There was a time when I swim like a rock. This went on till one day when I was fishing with a friend of mine at nearby pond. I slipped into one. Had my friend not come to my rescue, I would have been drowned. Ever since then, I had come to know the importance of learning to swim. I didn’t attend at any training class but learned it all by myself. Strange to say, I have difficult swimming at all now. Though the way I swim look awkward (笨拙的), at least it can keep me from floating. Thinking of this, I feel quiet satisfied.
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单项选择题

关于世界上第一台计算机ENIAC的叙述中，错误的是______。

A．ENIAC是1946年在美国诞生的

B．它主要采用电子管和继电器

C．它是首次采用存储程序和程序控制自动工作的电子计算机

D．研制它的主要目的是用来计算弹道
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