问题 单项选择题 共用题干题

患者男,15岁,直面型,鼻唇角正常,面下1/3正常,颏唇沟略深。前牙Ⅱ度深覆,覆盖4mm,磨牙远中尖对尖关系,上颌拥挤4mm,下颌无拥挤,第二磨牙已完全萌出

若该患者的前牙Bolton比率较大,治疗结束后双侧的尖牙关系可能为()

A.中性关系

B.尖对尖远中关系

C.完全远中关系

D.近中关系

E.轻度远中关系

答案

参考答案:E

阅读理解

阅读理解。

     Many Americans go to work five days a week. American students go to school five days a week, too. So they

usually have a two-day weekend. The weekend is Saturday and Sunday. At the weekend, people spend their time

in many different ways(不同的方式). Sometimes they play with friends. Many families enjoy weekends together.

     Many American families do some sports at the weekend . For example(例如), in summer, they enjoy swimming

and biking. In autumn, they like playing volleyball and tennis. In winter, they go skating (滑冰) and skiing(滑雪).

In spring, they like sightseeing(观光) and hiking(徒步旅行.) How happy they are!

     Do you have an enjoyable weekend?

1.How many days do many Americans go to work a week?

A. Five days    

B. six days    

C. seven days    

D. Four days

2.How do Americans spend their weekends?

A. In one way            

B. In two ways    

C. In three ways          

D. In many different ways. 

3. What sports do many Americans do in summer?

A. swimming and biking      

B. playing volleyball and tennis.

C. skating and skiing        

D. sightseeing and hiking

4. Which one is not true( 不真实的 )?

A. American schools are open five days a week.

B. In America, people usually have a one-day weekend.

C. people often play volleyball and tennis in autumn.

D. Many American families enjoy weekends together. 

5. When is weekend?

A. Sunday  

B. Saturday  

C. Friday and Saturday  

D. Saturday and Sunday

多项选择题 案例分析题