问题 单项选择题

下列描述不属于前列腺增生的超声表现的是()。

A.体积增大,且以前后径增大明显

B.轮廓清晰,横切面呈球形

C.内部回声增粗,可见边界不清的结节回声

D.外腺区可见一边界较清晰的低回声病灶

E.内腺部分和内外腺交界部可见强光斑回声

答案

参考答案:D

阅读理解

It is 40 meters long and 6 meters wide. This must be the biggest bus you have ever seen. It can carry 1,200 to 1,400 people.

It is China’s new Super Bus. It went for a test run in Beijing. Some other cities are also interested in running the Super Bus. They hope it can solve traffic problems.

The Super Bus runs along *fixed tracks. The bus sits on top of two2.2-meter-tall legs. The legs have wheels at one end. Small cars can drive under the bus, so the Super Bus does not take up road space.

The bus runs on *electricity and *solar power. It can travel up to 60 km every hour. Its creator, Song Youzhou, says it can reduce a lot of traffic *jams.

The Super Bus can do the work of 40 buses. In that way,  it can save 860 tons of *fuel every year, according to Song.

‘ Building a Super Bus and its track costs less than building subways. Subways are nearly ten times more expensive to build. ’ Song says.

Some people worry that the Super Bus may not be safe. However, Song says there’s no need to worry about that. The Super Bus has *laser *scanners between its legs. The scanners make sure the cars keep a safe distance.

小题1:The Super Bus can carry ___________people.

A. 1,300

B. 1,500

C. 1,700

D. 1,900小题2:Some other cities are also interested in running the Super Bus because they hope it can _____________________________

A.Take the place of small cars

B.Solve traffic problems

C.Increase the speed

D.Reduce car accidents小题3:All the following are the advantages of the Super Bus EXCEPT that ________.

A.The bus doesn’t take up road space

B.The bus can do the work of 40 buses

C.The bus is very easy to build and drive

D.The bus can save a lot of energy every year小题4:According to Song, it’s safe for small cars to drive under the Super Bus because _____.

A.the bus is tall enough

B.the road is wide enough

C.the bus travels up to 60 km per hour

D.there are laser scanners between its legs

单项选择题