问题 名词解释

层流洁净手术室

答案

参考答案:

层流洁净手术室:采用层流空气净化方式的手术室,即空气通过高效过滤器,呈流线状流入室内,以等速流过房间后流出。室内产生的尘粒或微生物不会向四周扩散,随气流方向被排出房间。

阅读理解
阅读理解。
        Started in 1636 , Harvard University is the oldest of all the many colleges and universities in the United
States . Yale , Princeton , Columbia and Dartmouth were opened soon after Harvard .
        In the early years , these schools were much similar . Only young men went to colleges . All the students
studied the same subjects , and everyone learned Latin , Greek and Hebrew . Little was known about science
then , and one kind of school could teach everything that was known about the world . When the students left
school , most of them became ministers or teachers .
        In 1782 , Harvard started a medical school for young men who wanted to become doctors . Later, lawyers
could receive their training in Harvard's law school . In 1825 , besides Latin and Greek , Harvard began teaching
modern languages , such as French and German . Soon it began teaching American history .
        As knowledge increased , Harvard and other colleges began to teach many new subjects . Students were all
owed to choose the subjects that interested them .
        Today , there are many different kinds of colleges and universities . Most of them are made up of smaller
schools that deal with (涉及) special fields of learning . There's so much to learn that one kind of school can't
offer it all .
1. The oldest university in the US is           .
[ ]
A. Columbia
B. Harvard
C. Princeton
D. Yale
2. From the second paragraph, we can see that in the early years,            .
[ ]
A. those colleges and universities were the same
B. people , young or old , might study in the colleges
C. students studied only some languages and science
D. when the students finished their school , they became lawyers or teachers
3. Modern languages that Harvard taught in 1825 were              .
[ ]
A. Latin and Greek
B. French and German
C. American history and German
D. Latin , Greek , French and German
4. As knowledge increased, colleges began to teach               .
[ ]
A. many new subjects
B. law and something about medicine
C. everything that was known
D. the subjects that interested students
5. On the whole, the passage is about              .
[ ]
A. how to start a university
B. how colleges have changed
C. the world-famous colleges in America
D. what kind of lesson each college teaches
单项选择题