正常人的开口度为A.3.7~4.5cm B.2.7~3.5cm C.4.7~5.5c

题型:单项选择题

问题:

正常人的开口度为

A.3.7~4.5cm

B.2.7~3.5cm

C.4.7~5.5cm

D.5.5~6.5cm

E.1.5~2.5cm

考点:口腔执业助理医师口腔执业助理医师74
题型:单项选择题

扯制水刷石圆柱帽,喷刷如何进行

题型:单项选择题

属于均相酶免疫测定的方法是

A.酶联免疫化学发光测定

B.dot-ELISA

C.双抗体夹心法ELISA

D.酶增强免疫测定技术

E.竞争法ELISA

题型:单项选择题

阅读理解。

     Modern inventions have speeded up people's loves amazingly. Motor-cars cover a hundred miles in little

more than an hour, aircraft cross the world inside a day, while computers operate at lightning speed. Indeed,

this love of speed seems never-ending. Every year motor-cars are produced which go even faster and each

new computer boats (吹嘘) of saving precious seconds in handling tasks.

     All this saves time, but at a price. When we lose or gain half a day in speeding across the world in an

airplane, our bodies tell us so. We get the uncomfortable feeling known as jet-lag; our bodies feel that they

have been left behind on another time zone. Again, spending too long at computers results in painful wrists

and fingers. Mobile phones also have their dangers, according to some scientist; too much use may transmit

harmful radiation into our brains, a consequence we do not like to think about.

     However, what do we do with the time we have saved? Certainly not relax, or so it seems. We are so

accustomed constant activity that we find it difficult to sit and do nothing or even just one thing at a time.

Perhaps the days are long gone when we might listen quietly to a story on the radio, letting imagination take

us into another world.

     There was a time when some people's lives were devoted simply to the cultivation of the land or the care

of cattle. No multi-tasking there; their lives went on at a much gentler pace, and in a familiar pattern. There

is much that we might envy about a way of life like this. Yet before we do so, we must think of the hard tasks

our ancestor faced: they farmed with bare hands, often lived close to hunger, and had to fashion tools from

wood and stone. Modern machinery has freed people from that primitive existence.

1. The new products become more and more time-saving because _____.

A. our love of speed seems never-ending

B. time is limited

C. the prices are increasingly high

D. the manufactures boast a lot

2. What does "the days" in Paragraph 3 refer to?

A. Imaginary life.

B. Simple life in the past.

C. Times of inventions.

D. Time for constant activity.

3. What is the author's attitude towards the modern technology?

A. Critical.

B. Objective.

C. Optimistic.

D. Negative.

4. What does the passage mainly discuss?

A. The present and past times.

B. Machinery and human beings.

C. Imaginations and inventions.

D. Modern technology and its influence.

题型:单项选择题

概、预算编制的主要依据包括______。

A.拟分包情况

B.设计资料

C.施工组织设计资料

D.施工单位的能力及潜力

E.地方主管部门颁布的有关法令性文件或规定

题型:单项选择题

在因特网上,一台计算机可以作为另一台主机的远程终端,使用该主机的资源,该服务称为

A) Telnet
B) BBS
C) FTP
D) WWW

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