有“一菜一格，百菜百味”之誉的菜系是（）。 A.鲁菜 B.川菜 C.浙菜 D.粤菜

我市大约有34万中小学生参加了“廉政文化进校园”教育活动，将数据34万用科学记数法表示，正确的是 [ ]

A、0.34×10⁵

B、3.4×10⁵

C、34×10⁵

D、340×10⁵

甲、乙、丙三人共做一道逻辑题，核对答案后，甲说：“我做错了。”乙说：“甲做的对。”丙说：“我做的不对。”由于都没有把握，于是去请教逻辑老师。老师看完他们的答案，又听了三人的话，对他们说：“你们三人的话与答案都只有一人的对。”可见( )

A．甲的话对，丙的答案对

B．甲的话对，乙的答案对

C．乙的话对，甲的答案对

D．丙的话对，乙的答案对

There is an old saying in English： "Laughter is the best medicine". Until recently, few people took the saying very seriously. Now, however, doctors have begun to investigate laughter and the effects it has on the human body. They have found evidence that laughter really can improve people's health.

Tests were carried out to study the effects of laughter on the body. People watched funny films, while doctors checked their heart rate, blood pressure, breathing and muscles. It was found that laughter has similar effects to physical exercise. It increases blood pressure, the heart rate and the rate of breathing； it also works several groups of muscles in the face, the stomach, and even the feet. If laughter exercises the body, it must be beneficial.

Other tests have shown that laughter appears to be capable of reducing the effect of pain on the body. In one experiment doctors produced pain in groups of students who listened to different radio programs. The group which tolerated the pain for the longest time was 'the group which listened to a funny program. The reason why laughter can reduce pain seems to be that it helps to produce endorphins （内啡肽） in the brain. These are natural chemicals which diminish both stress and pain.

There is also some evidence to suggest that laughter helps the body's immune(免疫的)system, that is, the system which fights infection. In an experiment, one group of students watched a funny video while another group served as the control group - in other words, a group with which to compare the first group. Doctors checked the blood of the students in both groups and found that the people in the group that watched the video had an increase in the activity of their white blood cells, that is, the cells which fight infection.

As a result of these discoveries, some doctors and psychiatrists （精神病学家） in the United States now hold laughter clinics, in which they try to improve their patients' condition by encouraging them to laugh. They have found that even if their patients do not really feel like laughing, making them smile is enough to produce beneficial effects similar to those caused by laughter.

小题1: We learn from the first paragraph that laughter____________________.

A．is good for one's health

B．is related to some illness

C．has been investigated long since

D．has no effect on the body小题2:Doctors have found that laughter_______________________.

A．keeps down blood pressure.

B．has similar effects to physical exercise

C．decreases the heart rate

D．increases stress小题3:Which of the following statements is NOT true of laughter, according to the passage?

A．It reduces pain.

B．It exercises the body.

C．It improves the body's immune system.

D．It can cure cancer.小题4:The writer's attitude towards laughter is__________.

A．critical

B．doubtful

C．positive

D．negative

当运行以下程序时，输入abcd，程序的输出结果是______。
insert(char str[])
int i；
i=strlen(str)；
while(i＞0)
str[2*i]=str[i]；str[2*i-1]=’*’；i--；
printf("%s\n"，str)；

main()
char str[40]；
scanf("%s\n"，str)；insert(str)；

秦始皇统一财政的内容及意义。