问题 单项选择题 A1型题

典型溃疡性结肠炎患者粪便的特点是()

A.黏液便

B.糊状便

C.稀水样便

D.黏液脓血便

E.蛋花汤样便

答案

参考答案:D

解析:此题是记忆题。考查考生对典型溃疡性结肠炎患者粪便特点的掌握情况。溃疡性结肠炎患者绝大多数都有腹泻,腹泻主要与炎症导致结肠对水钠吸收障碍及结肠运动功能障碍有关,粪便中的黏液脓血便则为炎症渗出、黏膜糜烂及溃疡所致,所以黏液脓血便是典型溃疡性结肠炎患者粪便的特点。而其他四个被选答案均不是典型溃疡性结肠炎患者粪便的特点。

阅读理解

阅读理解。

     After years of hearing drivers complain about scratches (划痕) on their cars, Japan's Nissan Motor

Company has officially announced the next big thing-a paint that not only resists scratches and scrapes,

but actually repairs itself within a few days.

     The new material, developed by Nippon Paint Company, contains an elastic rubbery-like resin (弹性树

脂) that is able to heal minor (较小的) marks caused by car wash equipment, parking lot encounters, road

debris (石头碎片) or even on-purpose destruction.

     The automaker admits its results vary depending on the temperature and the depth of the damage, but

adds this is the only paint like it in the world, and tests prove it works.

     Minor scratches, the most common type, are said to slowly fade over about a week. And once they're

gone, there is no trace (痕迹) that they were ever there.

     The special paint is said to last for at least three years after it is first applied, but there is no word yet

on whether more can be added after that period.

     Nissan claims car washes are the worst offenders for this type of damage, accounting for at least 80

percent of all incidents.

     But the complete auto-healing won't come without scratching your wallet. The vehicle maker notes

the special paint adds about $100 US to the price of a car.

     It plans to use its new chemical mixture only on its X-Trail SUVs in Japan for now, as it looks for a

more widespread presentation. And while plans to offer the feature overseas haven't been made yet, if it's

a hit there, you can be almost sure market forces will drive it to these shores, as well.

1. From the article, we can find that ______.

A. the paint has already been used on cars by now

B. it beats other products of its kind in its lengthy effect

C. car damage is mainly caused by scratches and scrapes

D. marketing this paint in Europe is not under way

2. The paint used on cars can ______.

A. last 3 years before it is re-applied again

B. fade only in a few days

C. help to heal minor paint damage

D. reduce car scrape incidents to 20 percent

3. What does the underlined part refer to?

A. certain models of Nissan

B. name for one kind of paint

C. somewhere in Japan

D. a word standing for a car-dealer store

4. What can be inferred from the article?

A. The paint was developed by Nissan Motor Company.

B. The paint might work better in summer than in winter.

C. The mark on the car could disappear as soon as the paint is applied.

D. The paint is very popular in Japan.

单项选择题