去病房实施静脉输液操作时，见病床上一位长期卧床的男性54岁慢性充血性心力衰竭患者，突

1比（    ）多25%，1比（    ）少25％。

细菌性痢疾患者的发热为感染性发热，属于感染性发热的有（）。

A.风湿热所致发热

B.白血病所致发热

C.结缔组织病所致发热

D.支原体肺炎所致发热

E.中暑所致发热

阅读理解。

     Scientists are not sure how the brain follows the tracks of time. One theory holds that it has a group of

cells specialized to record the intervals (间隔)of time, while another theory holds that some neural processes

(神经突)act as an inside clock.

     Whichever theory it may be, studies find, the cells have a poor grasp of longer interval. Time does seem

to slow during an empty afternoon and race when the brain focuses on challenging work. Stimulants (兴奋剂),

including caffeine, tend to make people feel as if time is passing faster; complex jobs, like doing taxes, can

seem to drag on longer than they actually do. And emotional events-a breakup, a promotion, a transformative

trip abroad-tend to be sensed as more recent than they actually are, by months or even years. In short, some

psychologists say, the findings support the philosopher Martin Heidegger's observation that time "persists

merely as a consequence of the events taking place in it."

     Now researchers are finding that the opposite thing may also be true: if very few events come to mind, then

the sense of time does not persist; the brain shortens the interval that has passed.

     In one classic experiment, a French explorer named Michel Diffre lived in a cave for two months, cut off

from the rhythms of night and day and man-made clocks. He appeared then, convinced that he had been

isolated for only 25 days. Left to its own devices, the brain tends to shorten time.

     In earlier work, researchers found that a similar case at work in people's judgment of intervals that last only

moments. Relatively infrequent stimuli, like flashes or tones, tend to increase the speed of the brain' s internal

pacemaker.

     On an obvious level, these kinds of findings offer an explanation for why other people's children seem to

grow up so much faster than one's own. Involved parents are all too well aware of first step in their own

children; however, seeing a cousin's child once every few years, without bothering memories, shortens the

time.

1. What can we infer from the first paragraph?

A. Scientists have agreed about how the brain records time.

B. Scientists all think that some cells record the intervals of time.

C. Scientists haven't agreed on how the brain records time.

D. Scientists all hold the theory that neural processes are an inside clock.

2. According.to Paragraph 3, if we have few things to do, the brain will _____.

A. make the intervals of time long

B. make the intervals of time short

C. keep a state of rest

D. stop working

3. Which of the following is TRUE according to the passage? 

A. Michel Diffre didn't think he had stayed in the cave for as long as two months.

B. Parents tend to think their own children grow faster than others.

C. Michel Diffre actually stayed in the cave for twenty-five days.

D. Children usually bring bad memories to their parents.

4. In which column of a newspaper can we find this passage?

A. Social news

B. Community activities

C. Science

D. Children s life

设有6个结点的无向图，若要确保此图是一个连通图，则至少应有边的条数是( )

A．5
B．6
C．7
D．8

某机电工程公司承接了一条20km长的高压输电线路及一座110kV变电站建设工程。

该20km长的高压输电线路虽然不存在大跨度架设，但沿途要穿越多处稻田和翻越两座小山林（三处塔基需要爆破），输电线材料由建设方提供。该11okV变电站规划在市郊支线公路一侧，其变压器器身虽充氮运输，但运输用大型平板车必须经过该市郊支线公路及其一座桥梁，桥梁要超载，但别无他途。变压器的二次水冷系统制造厂只供给定型设备，管路等连接部件为半成品，要在施工现场组焊安装。在该工程开工前，施工组织设计的编制人员向施工人员进行了施工组织设计交底，为整个工程的顺利实施和按期完工奠定了良好的基础。

建设方提供的输电电线一般有哪几种类型?