问题
单项选择题
Rh血型抗原属于
A．异种抗原
B．异嗜性抗原
C．同种异型抗原
D．自身抗原
E．外源性抗原
答案
参考答案：C
解析： 同种异型抗原是指来自同种生物而基因型不同的个体的抗原物质。人类的同种异型抗原主要有：HLA抗原、ABO抗原、Ig的同种异型抗原、Rh抗原。
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Rh血型抗原属于
A．异种抗原
B．异嗜性抗原
C．同种异型抗原
D．自身抗原
E．外源性抗原
参考答案：C
解析： 同种异型抗原是指来自同种生物而基因型不同的个体的抗原物质。人类的同种异型抗原主要有：HLA抗原、ABO抗原、Ig的同种异型抗原、Rh抗原。
| 选择方框内合适的词，并用其适当形式填空。 | |
2. In Britain, people not only use ______ to cut things, but also use them to have meals. 3. — Bob, have you _____ up your things on the floor? — Not yet, Mum. I am still busy with my homework. 4. On weekends, the supermarkets are usually ______ with people. 5. — Excuse me, would you tell me where I can buy some shampoo? — Sure. ______ the post office, there's a small supermarket. |