为延长旋塞阀的使用寿命，应定期加注密封脂。在加注密封脂之前，使阀门处于（）状态。
A.全关
B.全开
C.全关或全开
D.以上都对
参考答案：C
根据句意及首字母补全单词。
1. Does the family come from G_____?
2. France is a country in E_____.
3. When and where were you b_____?
4. You should r_____ the library books on time.
5. She studies in a j_____ high school.
6. What's the s_____ of the basketball match?
7. I went to go to u_____ when I'm older.
8. His ambition is to play football in the O_____.
9. That makes me d_____ from other people.
10. When the meeting is a_____ over, that man comes in.
治疗产后缺乳的经验穴是（）
A.小海
B.腕骨
C.后溪
D.前谷
E.少泽
