Rates Include: all necessary rafting equipment, life jackets, free parking, bus service to/from the river, and a barbeque lunch, river guides not included.

21.We can infer that ____.

A. the higher the class is, the milder the water is B. the lower the class is, the milder the water is

C. the higher the class is, the safer the rafting is D. the lower the class is, the faster the rafting is

22.If 10 college students are to participate in the Dam Release White & shy; water Rafting, how much money will be paid in total?

A.$610. B.$330. C.$390. D.$310.

23.Family Style White-water Rafting is unique in that ____.

A.it allows people to swim in the river B. the river water is very clean

C.it provides a barbeque lunch for free D.it offers a free bird­watching activity

　　People always think men are more skilled than women in driving. Nowadays women appear to have a positive image of themselves as safer drivers than men.

　　In a survey done by insurer MetLife, 51% of women said they drive more safely. The evidence is on their side: Men are 3.4 times more likely than women to get a ticket for careless driving and 3.1 times as likely to be punished for drunk driving. "Women are on average less aggressive and more law abiding(手法的) drivers, which leads to fewer accidents," the report says. However, not all male drivers share the same opinion. Of the men surveyed by MetLife, 39% claimed male drivers were safer. The findings did back them up on one point: automotive knowledge. The report showed that more men are familiar with current safety equipment such as electronic stability control, which helps prevent rollover accidents.

Auto safety unavoidably matters to money. Insurance companies focus on what classes of drivers have the lowest dollar amounts of claims, and for now, that mainly includes women. In general, women pay about 9% less for auto insurance than men. A study by the website Insweb also showed that auto insurance rates are lower for women in most states. Among individual states, women get the greatest advantage in Wyoming(where they pay 20% less), South Dakota