[填空题]______(salary)people who earn more than a few thousand dollars must pay a certain percentage of their salaries．

[单项选择]
Why do drinkers earn more than teetotalers according to this passage a. Because drinkers have better health. b. Because drinkers receive more money from social warefare. c. Because drinkers have wider social networks. d. Because drinkers are more hard-working.

[填空题]Women earn more money than their counterparts of the opposite sex only in nursing.

[填空题]Who has owned more than 50 domain names
A. A．George W. Bush
B．Kelsey Grammar
C．Bonita Card.

[单项选择]Sleeping
People who sleep for more than eight hours a night do not live as long as those who sleep for six hours, according to the biggest study yet into sleep patterns and mortality(死亡率).
Scientists have no explanation for the findings and do not know if they mean people who like a lie. in(睡懒觉)Can extend their lives by sleeping less. 16v More than 1.1 million Americans participated in the six-year study.
A. Right
B. Wrong
C. Not mentioned

[单项选择]

Women earn less than men do. For example, in 1998 the hourly wages of women in the U. S. were 26% less than those of men. The gap between male and female incomes varies with age. The gap between the labor incomes of young women and young men varies. It’s also clear that jobs in which women are concentrated pay less. The larger the number of workers who are women in ran industry, the lower the average wages.
Why do women earn less than men do Can the differences be explained by the fact that women are looked down upon If so, the government has to intervene(干预), to force the employers to pay equal wages to equal jobs. However, there is no agreement among economists about the causes of the gap. One view argues that women, on the average, have chosen low-paying jobs in which workers enjoy the freedom of entering and leaving the labor force, which reduces their years of experience relative to men. Other people say the gap can also be explained by the difference in educat
A. Levels of education are closely related to productivity.
B. Women are not as productive as men.
C. Women receive less education than men.
D. Goods produced by men are not as good as those by women.