问题 单项选择题

有关全口义齿平面的设置,错误的是()。

A.平面的前部与瞳孔连线平行

B.平面高于舌背

C.平面平行于牙槽嵴

D.平面两侧等高

E.平面远中延长线等于磨牙后垫1/2的高度

答案

参考答案:B

解析:人体咀嚼食物时,食物由舌体分配至下颌后牙的平面。如平面过高,则舌体必须较大幅度抬高,肌肉收缩力作用于基托边缘形成脱位力,就不利于下颌义齿的稳定。鉴于物高而不稳,如下颌牙槽嵴萎缩严重,预期下颌义齿固位较差,平面也应适当下移。所以平面高度应等于或略低于舌边缘,不能高于舌背。答案为B。

阅读理解

阅读理解。

     I know what you're thinking: pizza (比萨饼)? For breakfast? But the truth is that you can have last

night's leftovers in the a.m. if you want to.

     I know lots of women who skip breakfast (不吃早餐), and they have a ton of different excuses for

doing it. Some say they don't have time. others think they're "saving" calories (卡路里), still others just

don't like breakfast food.

     But the bottom line is that eating in the morning is very important when you're trying to lose weight.

"Eating just about anything from 300 to 400 calories would be better than nothing at all," says Katherine

Brooking, R.D, who developed the super-easy eating plan for this year's "SELF CHALLENGE". And even

pizza can be healthy if it's loaded with vegetables, and you stick to one small piece.

     Breakfast is one meal I never miss, and the same goes for most weight loss success stories. Research

shows that eating breakfast keeps you from overeating later in the day. Researchers at the University of

Southern California found that breakfast skippers have a bigger chance of gaining weight than those who

regularly have a morning meal.

     So eat something in the morning, anything. I know plenty of friends who end up having no breakfast

altogether, and have just coffee or orange juice. I say, try heating up last night's leftovers-it may sound

crazy, but if it works for you, do it! I find if I tell myself, "You can always eat it tomorrow," I put away

the leftovers instead of eating more that night. Try it…you may save yourself some pre-bedtime calories.

And watch your body gain the fat-burning effects.

1. The word "leftovers" in Paragraph 1 probably means ____.

A. food remaining after a meal

B. things left undone

C. meals made of vegetables

D. pizza topped with fruit

2. What can we infer from the text?

A. Working women usually have breakfast in a hurry.

B. Many people have wrong ideas about breakfast.

C. There are some easy ways of cooking a meal.

D. Eating vegetables helps save energy.

3. According to the last paragraph, it is important to ____.

A. eat something for breakfast

B. be careful about what you eat

C. heat up food before eating it

D. eat calorie-controlled food

4. The text is written mainly for those ____.

A. who go to work early

B. who want to lose weight

C. who stay up late

D. who eat before sleep

单项选择题 A3/A4型题