问题
单项选择题
供应视网膜内5层营养的血供来源为（）
A.睫状后短动脉
B.睫状前动脉
C.睫状后长动脉
D.视网膜中央动脉
E.视网膜睫状动脉
答案
参考答案：D
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供应视网膜内5层营养的血供来源为（）
A.睫状后短动脉
B.睫状前动脉
C.睫状后长动脉
D.视网膜中央动脉
E.视网膜睫状动脉
参考答案：D
| 用方框中所给词语的适当形式填空。 | |
a test. I 3. very sad and I almost wanted to give up this subject. Then my deskmate told me that English was a very 4. subject and we must study it well. I was moved (感动). From then on, I studied English 5. than before. 6. I had difficulties, I would go to her 7. help. With her help, my English had improved (提高) a 8. by the end of the term. We are now in 9. schools. But I often 10. of her and her help. |
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