存在于链球菌细胞壁上具有群特异性的抗原是()。 A.SPA B.多糖抗原 C.核蛋白

题型:单项选择题 B型题

问题:

存在于链球菌细胞壁上具有群特异性的抗原是()。

A.SPA

B.多糖抗原

C.核蛋白抗原

D.表面抗原

E.脂多糖抗原

考点:临床医学检验学主治医师微生物和微生物学检验微生物和微生物学检验题库
题型:单项选择题 B型题

设A={x|x是小于9的正整数},B={1,2,3},C={3,4,5,6},则A∩(B∪C)=______.

题型:单项选择题 B型题

短文改错/Proofreading and error correction

It was the chance of a lifetime to win the first prize on the Story Writing Show. All I had to do was to write a story or present it. My teachers have been telling me how great my writing was. So if they had said was true, I would have a chance of winning the prize. What were better, I had useful help. There was Uncle Chen, gentleman living near my house, who was a very much famous writer. He agreed to reading my story and give me some advices on how to write like a real writer.

9()

题型:单项选择题 B型题

血清学试验是指 ()

A.体外的抗原抗体反应

B.用已知抗原检测患者血清中相应抗体

C.用已知标记抗原检测患者血清中相应抗体

D.用含有已知特异性抗体的免疫血清检测标本中的抗原

E.用含有已知特异性抗原的免疫血清检测标本中的抗体

题型:单项选择题 B型题

水泥混凝土抗折强度试验标准试件尺寸为( )。

A.100mm×100mm×400mm

B.100mm×100mm×550mm

C.150mm×150mm×400mm

D.150mm×150mm×550mm

题型:单项选择题 B型题

稳定性是测量仪器保持其计量特性随时间恒定的能力。()

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