单词拼写。

1. Manatees eat about 100 _____ (磅).

2. In China, we are supposed to _____ (握) hands while we say  "Hello" to others.

3. The flowers should _____ (浇水) every day.

4. My grandfather had to get up at 5 am to _____ (点) the  fire for breakfast.

5. There will be a free concerts tonight.   Some bands will _____ (露面) then.

6. We are against _____ (建造) a new zoo.

7. We've learned a lot from _____ (科学的) studies.

8. There are many _____ (村民) planting the trees on the hill  now.

9. They often feed the animals in their _____ (空闲的) time.

10. This manatee _____ ( 重)1,000 pounds.

下列哪种情况不是消化性溃疡的并发症（）。

A.胃穿孔

B.胃潴留

C.上消化道出血

D.胃癌

E.反流性食管炎