下列各项，不属于沉脉类的是（）。 A.沉脉 B.弦脉 C.伏脉 D.牢脉 E.弱脉

上海世博会将展示全球城市发展进入“（）”的新阶段所面临的全球性挑战及其可能的解决方案。

A.新经济时代

B.城市时代

C.城市与乡村互动发展

阅读理解。

     When skateboarding started in the 1960s, skateboards were made of wood and had clay wheels. Since

the wheels did not grip concrete well, riders could do very few tricks with them. Soon people lost interest

in the sport.

     In 1973, though, a new wheel was invented in California. It was made of a plastic called urethane (氨基

甲酸酯). A skateboard with these wheels moved very quickly and it also gripped the concrete well. During

the next few years skateboards were further improved. The urethane was perfected, and because the boards

were shaped better, riders liked them better. These skateboards gave new life to skateboarding.

    The streets were not safe for skateboarding, although it was easy to ride on the streets. As a result,

skateboard parks sprang up. The first parks appeared in California and Florida. At first there were only outdoor

parks that had concrete slopes with small curves (曲线). Then more exciting parks appeared which had steep

downward slopes, banked curves, and vertical walls. Today, there are both indoor and outdoor parks.

     In most of these parks riders must wear helmets (头盔) as well as knee and elbow pads (护肘). This gear

can prevent a fall from causing serious injury.

     Whenever they ride, people should always use this safety equipment, and they should learn how to fall

safely. Many accidents happen during the first week of riding, so it is very important that riders be taught well.

1. Why were the new skateboards more popular? [ ]

A. They were safer than the older ones.

B. The older models were expensive.

C. They were stronger than the older ones.

D. People could do more tricks with them.

2. The underlined word "grip" in the first paragraph means "_____". [ ]

A. move over a surface without slipping

B. stick to

C. replace

D. break down

3. Skateboard parks developed because _____.[ ]

A. parents decided it would be a good idea

B. too many accidents happened on the streets

C. many streets did not allow skateboarding

D. most city parks did not allow skateboarding

4. Which of the following statements about skateboard parks is TRUE? [ ]

A. The first parks appeared in Scotland and Florida.

B. The earlier parks had steep slopes.

C. In the parks people don't have to wear helmets.

D. At first there weren't any indoor parks.

病例对照研究中，为控制混杂偏倚，常采用（）

A.研究对象匹配

B.分层分析

C.标准化法

D.多元回归分析

E.显著性检验

辛亥革命后，“抵制洋货”“实业救国”的行动推动了中国民族资本主义的发展。这里主要抵制的是

A．美国对中国的资本输出

B．日本对中国的经济入侵

C．英国对中国的经济入侵

D．俄国对中国的经济入侵

下列税种中，属于财产税的有( )。

A．增值税

B．企业所得税

C．车船税

D．房产税

E．证券交易税