问题
单项选择题
临床上Rh血型的定义是根据红细胞上是否含有
A.D抗原
B.C抗原
C.E抗原
D.c抗原和e抗原
E.以上都不是
答案
参考答案:A
解析:由于D抗原的抗原性强,临床上,习惯将有D抗原者称Rh阳性。
临床上Rh血型的定义是根据红细胞上是否含有
A.D抗原
B.C抗原
C.E抗原
D.c抗原和e抗原
E.以上都不是
参考答案:A
解析:由于D抗原的抗原性强,临床上,习惯将有D抗原者称Rh阳性。
Read and answer. (找答语,将右栏答语前的序号填在前面的括号里。) | |
A ( )1. Welcome to our school. ( )2. How much is the nice shirt? ( )3. Is this a teacher’s desk? ( )4. What are these? ( )5. What time is it? ( )6. How old are you? ( )7. Let’s go to the playground. ( )8. How many cows do you havew? ( )9. What’s the weather like today? ( )10. Whose dresses are those? | B A. It’s 7 o’clock. B. Thirty yuan. C. Great! D. I’m eleven. E. It’s sunny. F. They are my mother’s. G. Thank you. H. They are hens. I. Yes,it is. J. I have nine. |