[单项选择]类风湿关节炎是一种（）
A. 中老年退行性变，非炎症疾病
B. 与IgM半乳糖化缺陷有关
C. 非对称性多关节为主的疾病
D. 与A族乙型链球菌感染有关的疾病
E. 以多关节炎为主的自身免疫性疾病

Passage Two
Some people think they have an answer to the troubles of automobile crowding and dirty air in large cities. Their answer is the bicycle, or "bike."
In a great many cities, hundreds of people ride bicycles to work every day. In New York City, some bike riders have even formed a group called Bike for a Better City. They claim that if more people rode bicycles to work there would be fewer automobiles in the downtown section of the city and therefore less dirty air from car engines.
For several years this group has been trying to get the city government to help bicycle riders: For example, they want the city to draw bicycle lanes on some of the main streets, because when bike riders must use the same lanes as cars, there are accidents. Bike for a Better City feels that if there were special lanes more people would use bikes.
But no bicycle lanes have been drawn. Not everyone thinks it is a good idea--they say it will slow t
A. Bike for a Better City members ride bicycles to work.
B. Sometimes accidents may occur when cars and bikes are on the same lines,
C. The Central Park is situated in the downtown section of New York.
D. In some cities many people use bikes as they have special lanes.

W: How much do these cost
M: They’re $ 17.
W: Don’t you think that’s expensive for a pair of gloves
M: Not at all. That’s the best price in town.