液压支架用安全阀的功能和基本要求是什么？

关于结肠癌说法正确的是（）

A.腹痛、腹泻，排便后腹痛缓解

B.腹痛、腹泻，便中有脓血

C.腹痛伴腹胀

D.腹泻、发热伴里急后重

E.腹泻、便潜血阳性

患者男，70岁，上下颌牙列缺失，检查：见患者牙弓形态正常，牙槽嵴平整，较丰满，常规行全口义齿修复，制取蜡堤转移颌位记录

正常情况下对全口义齿堤平面的要求中下列哪一项是错误的（）

A．堤平面前部位于上唇下2mm

B．两眼平视时平面前部与瞳孔连线平行

C．堤平面两侧与耳屏鼻连线平行

D．堤平面平分颌间距离

E．堤平面靠近下颌牙槽嵴顶

居全身关节脱位第一位的是（）。

A.肩关节脱位

B.肘关节脱位

C.髋关节脱位

D.膝关节脱位

E.颞颌关节脱位

Jeanne Calment, a French woman, became a record breaker on 17 October of 1995, when at the age of 120 years and 238 days , she became the longest-lived human being on record. A Japanese man died in 1986 at the age of 120 years and 237 days.

Jeanne Calment lives in a small old people’s home in the south of France; her husband, her only child and her grandson have all died. She is nearly blind and deaf and she is always in a wheelchair, but her doctor describes her as being more like a 90-year-old in good health than someone of 120. She still has a lively sense of humor. When asked on her 120th birthday what she expected of the future, she replied: A very short one. She also remarked that she thought the good Lord had forgotten all about her.

So what is the key to a long life According to some doctors, diet, exercise and no smoking are the three important factors. Jeanne Calment has followed two of the tips. She has always eaten a healthy diet, and she used to do exercises every day until she broke her leg at the age of 115. However, until recently she drank two glassed of p red wine a day, and she does smoke (now only a little). Besides, Jeanne Calment might have got very good genes from her parents. Her father lived to the age of 94 and her mother to 86.

A local lawyer bought her house when she was 80 under an agreement that he would pay her some money every year until her death. It must have seemed a good move at the time, but so far the lawyer has paid her at least three times the value of the house. Every year on her birthday Jeanne Calment sends him a card saying: Sorry, I’m still alive !

How does Jeanne Calment feel about her old age（）

A. She is miserable and unhappy.

B. She is cheerful and humorous.

C. She would like to live much longer.

D. She feels she is going to die very soon.

伦勃朗是西方美术史上的巨匠之一，他的艺术在后世影响巨大，在艺术技法上也有自己的创新。请谈谈你的理解。