问题
单项选择题 案例分析题
男性,52岁,患慢性骨髓炎6个月,血红蛋白75g/L,白细胞、血小板正常。血清铁6.23μmol/L,铁蛋白200μg/L,骨髓增生活跃,细胞外铁(++)
该病的发病机制描述不正确的是()
A.机体造血储备能力降低
B.红细胞生成素相对不足
C.单核-巨噬细胞释放内铁障碍
D.红细胞干细胞凋亡过早
E.细胞利用铁障碍
答案
参考答案:D
男性,52岁,患慢性骨髓炎6个月,血红蛋白75g/L,白细胞、血小板正常。血清铁6.23μmol/L,铁蛋白200μg/L,骨髓增生活跃,细胞外铁(++)
该病的发病机制描述不正确的是()
A.机体造血储备能力降低
B.红细胞生成素相对不足
C.单核-巨噬细胞释放内铁障碍
D.红细胞干细胞凋亡过早
E.细胞利用铁障碍
参考答案:D
选择下列句子的对话顺序,使其组成一段符合逻辑的对话。 |
1. ①My name is Jim Green. ②Good morning! ③Good morning! ④I'm Han Mei-mei. What's your name? |
[ ] |
A. ①③④② B. ④①②③ C. ③②④① D. ③④②① |
2. ①I'm fine, too. ②Hi, Ann! How are you? ③Hello. Kate! ④I'm fine,thank you, and you? |
[ ] |
A. ③①④① B. ②③①④ C. ④①③② D. ②④①③ |
3. ①Good morning! ②Jim green. ③Thank you, Miss Gao Hui. ④Good morning! I'm Gao Hui. What's your name, please? ⑤Jim, please sit down. |
[ ] |
A. ④①③②⑤ B. ①④③②⑤ C. ①④⑤③② D. ①④②⑤③ |
4. ①Fine, thank you, How are you? ②I'm fine. ③ How are you? |
[ ] |
A. ③①② B. ①②③ C. ③②① D. ②①③ |
5. ①Nice to meet you! ②Hello! ③Hello! ④Nice to meet you, too! |
[ ] |
A. ②③④① B. ①④②③ C. ②③①④ D. ②①③④ |
6. ①Nice to meet you! ②Hi! My name is Ma Yan. What's your name? ③Nice to meet you, too! ④ My name is Li Lei. |
[ ] |
A. ④①②③ B. ①④③② C. ②④①③ D. ③①②④ |