治疗食管静脉曲张破裂出血，以下哪项措施最有效（） A.安络血肌肉注射 B.维生素K静

Large population has caused many problems. For example, the traffic is very heavy in some big cities.

During the last ten years, big cities like Beijing and Harbin were full of cars and buses. Now the streets are completely crowded and it’s very difficult to drive a car along them. Drivers must stop at hundreds of traffic lights. What are our cities going to be like in the future? How can we solve the problem?

There are some good ideas to reduce the use of private(私人的) cars. In 1971, the officer in Rome began an interesting experiment: Passengers on the city buses didn’t pay for their tickets.

In Stockholm there was another experiment: People paid very little for a season ticket to travel on any bus, trolley bus(电车) and train all over the city.

In many cities now some streets are closed to vehicles(机动车) and pedestrians are safe there.

In London there is another experiment: Part of the streets is for buses only. So the buses can travel fast. There are no cars or taxis in front of them.

根据短文内容, 选择最佳答案。

小题1:The passage is about         .

A．big cities

B．streets

C．cars

D．traffic小题2:The city of          once experimented on a completely free bus service.

A．London

B．Paris

C．Rome

D．Stockholm小题3:The city of          experimented on a very cheap bus service.

A．Paris

B．Stockholm

C．London

D．None of the above小题4:The underlined word “pedestrians” means_________ in Chinese.

A．行人

B．司机

C．旅客

D．向导小题5:In many cities, pedestrians are much safer because         .

A．no traffic is allowed in some streets

B．traffic is computer-controlled

C．cars move very slowly

D．only one-way streets are open to traffic

急性阑尾炎临床症状发生的顺序一般是先恶心，后低热，再右下腹疼痛()

用环氧树脂修补法，主要是针对油罐（）的修补。

A.馈孔

B.裂纹

C.砂眼

D.锈坑

患者，女，30岁，已婚。孕后因持重而继发腰酸腹痛，胎动下坠，精神倦怠，脉滑无力。治疗应首选（）

A.举元煎

B.胎元饮

C.固下益气汤

D.加味圣愈汤

E.加味阿胶汤

上、中、下三焦的部位是如何划分的其各自的生理功能特点是什么？