问题
单项选择题 A1/A2型题
引起再障最主要的原因是（）
A.造血原料缺乏
B.失血过多
C.红细胞破坏过多
D.红细胞寿命缩短
E.骨髓造血功能障碍
答案
参考答案：E
搜题请搜索小程序“爱下问搜题”
引起再障最主要的原因是（）
A.造血原料缺乏
B.失血过多
C.红细胞破坏过多
D.红细胞寿命缩短
E.骨髓造血功能障碍
参考答案：E
A: Good morning, Sue. Did you enjoy your holiday in the country? B: 小题1: And some friends went with us. A: 小题2: B: In a hotel. And we could enjoy the beautiful scenery from the window. A: Sounds goood. 小题3: B: The sun shone nearly every day and it didn’t rain at all. A: 小题4: B: Yes,they were great. We met some farmers and had some food in their houses. __小题5: Did you have a good weekend? A: Yes,but I didn’t do much. I just stayed at home.
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