问题 单项选择题

心尖区听到舒张期隆隆样杂音,除考虑二尖瓣狭窄的诊断外,还可能是()

A.三尖瓣关闭不全

B.三尖瓣狭窄

C.左房黏液瘤

D.主动脉瓣关闭不全

E.肺动脉瓣关闭不全

答案

参考答案:C

解析:左房黏液瘤多在舒张期阻塞二尖瓣口,临床上酷似二尖瓣狭窄。

阅读理解

阅读理解。

    This morning, a boy of twelve saw a small fire at one end of a ship. Tom left home very

early, against the wishes of his father, to see the ships at the port. It was a good thing that

he did, because there was nobody else around, and the small fire grew dangerously big very

soon.

    Tom stood near the ship and shouted at the top of his voice. He woke up the port workers

living nearby. The ship was one of the six big ships in port at the time and they were all carrying

oil (石油) and paper. The fire burned hundreds of boxes of paper, so it spread very quickly.

The end of the ship was black with smoke, but thanks to Tom, the fire didn't reach the oil.

    Tom was also lucky, because his father was pleased rather than angry with him.

1. When Tom saw the fire, he was _____. [ ]

A. at home

B. at the port

C. on the ship

D. on another ship

2. It was a small fire _____. [ ]

A. but it grew big very quickly

B. and luckily it stayed small

C. but it grew big very slowly

D. and it was not dangerous

3. As soon as the boy saw the fire, _____. [ ]

A. he knocked on the doors of nearby houses

B. he ran back home to tell his father

C. he shouted to wake up the workers nearby

D. didn't do anything at all

4. The ship was carrying _____. [ ]

A. paper and wood

B. oil and paper

C. wood but not oil

D. oil but not paper

5. The fire _____. [ ]

A. burned boxes of paper at first

B. burned oil at last

C. burned the boy

D. burned the whole ship

6. In this story the underlined word "against" means _____ in Chinese. [ ]

A. 顺从

B. 按照

C. 违背

D. 防备

多项选择题