问题
单项选择题 A1型题
确诊α型海洋性贫血的依据是（）
A.周围血象呈小细胞低色素性贫血
B.骨髓红细胞系统增生明显活跃
C.红细胞渗透脆性减低
D.HbF碱变性测定，HbF明显增高
E.血红蛋白电泳分离出HbH及HbBart
答案
参考答案：E
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确诊α型海洋性贫血的依据是（）
A.周围血象呈小细胞低色素性贫血
B.骨髓红细胞系统增生明显活跃
C.红细胞渗透脆性减低
D.HbF碱变性测定，HbF明显增高
E.血红蛋白电泳分离出HbH及HbBart
参考答案：E
| 根据对话内容与上下文，在空白处填入适当的句子，使对话意思完整。 |
| A: Hi, Mary. Are you going to visit Beihai Park tomorrow? B: Yes. We'll start at 7:50. ____________________________________________? (1) A: I'd love to. But do you think it's going to rain tomorrow? B: _________________________________________________. (2) Look, there isn't any cloud in the sky. A: I hope it will be fine tomorrow. ______________________________________? (3) B: Not far. It'll take us half an hour. It's only 5 bus stops. A: You mean we'll go there by bus, is that right? B: Yes. ____________________________________________________________. (4) A: But I'd like to go there by bike. At that time the streets are very busy. Buses can't go faster than bikes. B: I agree with you. Going by bike can save both time and money. A: Yes. __________________________________________________________. (5) B: OK. Goodbye. A: Bye-bye. |