气胀救生筏的主浮力舱应分成至少几个独立的隔舱（）。A、3个 B、2个 C、4个
题型：单项选择题
问题：
气胀救生筏的主浮力舱应分成至少几个独立的隔舱（）。
A、3个
B、2个
C、4个
题型：单项选择题
阅读理解。
An old woman has three sons. They live in different cities and have a lot of money. One day they
talked about the gifts for their old mother.
The first son said, "I'll buy a big house for our mother. "
The second son said, "I'll give her a sports car with a driver. "
The third son said, "I'll get her something special (特别的). "You know Mom enjoys reading books. But you know, she can't see very well. So I'll get her a parrot. It can recite books. The seller spends
12 years teaching it. "
Later, Mom wrote her letters of thanks to them one by one,"Milton,"she wrote to one son , "The
house is so big, I live in only one room, but I have to clean all the house. "
"Gerald," she wrote to the second one,"I am old now, so I don't want to travel. I stay at home most
of the time, so I use the sports car very little!"
"Dear Donald," she wrote to her third son, "You are so good to know what I like. The meat is so
delicious. "
1. The old woman has _______ sons.
A. 2
B. 3
C. 6
D. 12
2. What does Gerald give his mother?
A. A letter.
B. A house.
C. A car.
D. A bird.
3. How did the third son feel after he read his mother's thank-you letter?
A. Surprised.
B. Warm.
C. Hungry.
D. Happy.
4. What did the mother do with (处理) the parrot?
A. Give it to others.
B. Eat it.
C. Sell it.
D. Clean it every day.
5. Why did the old woman like Donald's gift?
A. Because it's very expensive.
B. Because it's delicious.
C. Because it can help clean all the house.
D. Because it can recite the books.