问题
单项选择题 A1/A2型题
巨幼细胞性贫血发病的机制为（）。
A.血红蛋白合成障碍
B.DNA代谢障碍
C.细胞凋亡过度
D.能量代谢障碍
E.RNA代谢障碍
答案
参考答案：B
搜题请搜索小程序“爱下问搜题”
巨幼细胞性贫血发病的机制为（）。
A.血红蛋白合成障碍
B.DNA代谢障碍
C.细胞凋亡过度
D.能量代谢障碍
E.RNA代谢障碍
参考答案：B
| 用方框中所给动词的适当形式填空，完成下列各句，每个词只能用一次。 | |
2. Can you _____ to speak French well this year? 3. That _____ very interesting. 4. How can I_____ healthy? 5. －What do you want to _____? －I want to become an art teacher. 6. Do you enjoy _____ football? 7. What would you like _____ for dinner this evening? 8. I'm going to _____ good grades. 9. He _____ guitar lesson every Wednesday evening. 10. Are you going to _____ some model ship? |