第7题: [单项选择]下列可以引起原位溶血的疾病是 A. 海洋性贫血 B. 遗传性球形细胞增多症 C. 骨髓增生异常综合征 D. G-6-PD缺乏症 参考答案:C 答案解析:无效性红细胞生成或称为原位溶血，指骨髓内的幼红细胞在释入血循环之前已在骨髓内破坏，可伴有黄疸，其本质是一种血管外溶血，常见于巨幼细胞贫血、骨髓增生异常综合征等。
第16题: [简答题]part 2 & 3A speech
Why do people feel nervous when delivering a speech
Who should give speeches to children Describe an important conversation you had.
Are there any communication differences between males and females
Do you think communication skills are important 参考答案:
