阅读短文，选择正确答案。

      Sally is an artist. Usually she gets up at ten in the morning. Then she eats breakfast and does morning

exercises. She likes painting at night. She believes (相信) she does best at night. She never watches TV in the

evening. She goes to bed late. She teaches lessons, too. She is a good teacher. Her students like her very much.

She goes to school by bike and comes back on foot. Now Sally lives in the country. She is preparing for her

first painting show. She is working hard and she is very excited.

1. What does Sally do?

A. A doctor.

B. A nurse.

C. An artist.

2. Does she get up early in the morning? 

A. Yes, she does.

B. No, she doesn't.

C. Yes, she doesn't.

3. Does she watch TV in the evening?

A. No, she doesn't.

B. Yes, she do.

C. Yes, she does.

4. How does she go to school?

A. By bike.

B. By bus.

C. On foot.

拆卸长径比值较大的零件时，为防止重型零件变形，可采用（）支撑卧放。

A.单支点

B.双支点

C.多支点

D.无支点