阅读小天地：读一读，选一选。
This is Sue. She's an English girl. She's ten. Her mother likes to use fork and knife, and she likes beef and
fish. Her father likes to use chopsticks, and he likes vegetables and rice. Sue likes fruits best. They have a big
dinner every Sunday. And they like Chinese food.
1. Sue is ____________.
A. a good girl
B. a Chinese girl
C. an English girl
2. Her mother likes to use ____________.
A. chopsticks
B. fork and knife
C. spoon
3. Her father likes ____________.
A. beef and fish
B. vegetables and rice
C. hamburgers
4. What does Sue like best?
A. Banana.
B. Cherry.
C. Fruits.
5. They have ____________ every Sunday.
A. a big dinner
B. a party
C. fruit
时（T为交流的周期），原线圈中的电流瞬时值为0.03A．变压器的原、副线圈的匝数比为（ ）
：3
