一般认为，我国古代“九州”概念早于三代时期就形成了，目前主要的可从（）看到相关记载。
A.《逸周书》
B.《春秋》
C.《诗经》
D.《尚书》
参考答案：D
根据问题选择正确的选项写在横线上。
Question l: How do you feel if you have the flu?
1. have a sore throat 2. nose hurts
3. have a stomachache 4. have an earache
5. have a headache 6. have a toothache
7. have a fever 8. leg hurts
Question 2: Sarah is sick. What should she do?
1. Have some rest. 2. Take some medicine.
3. See a doctor. 4. Go hiking.
5. Drink some hot water. 6. Go skating.
为了拆装方便,油管路应多使用法兰连接。( )
