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问题 单项选择题 A3/A4型题

男性，50岁。近20天持续痰中带血。胸部听诊在左上肺可闻局限性哮鸣音，咳嗽后无改变。

首先要考虑的治疗措施是（）。

A.止血治疗

B.手术治疗

C.抗感染治疗

D.解痉治疗

E.解痉、抗感染治疗

答案

参考答案：B

选择题

图为某气候站绘制的武夷山不同海拔高度的12月、6月的月平均气温变化曲线图，其中a、b分别代表方向不同的山坡面。完成下面2题。

小题1:甲、乙两图中，a和b曲线温度的测量坡面分别位于武夷山脉山脊线的

A．西北面和东南面

B．东南面和西北面

C．东北面和西南面

D．西南面和东北面小题2:甲图中，在1600米以下，a曲线上各点的气温远低于同海拔b曲线上各点的主要原因是

A．a处降水多

B．b处受暖流的影响

C．a处受冬季风的影响

D．b处受台风的影响
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单项选择题

Believe it or not，optical illusion can cut highway crashes.
Japan is a case in point．It has reduced automobile crashes on some roads by Rearly 75 percent using a simple optical illusion．Butst．ripes,called chevrons(人字形)，painted on ther rads make drivers think that they are driving faster than they really are，and thus drivers slow down.
Now the American Automobile Association Foundation for Traffic Safety in Washington D．C. is planning t。repeat Japan’s success．Starting next year，the foundati。n will paint cheyrons and。ther pattems of stripes on selected roads around the country to test how well the patterns reduce highway erashes．
Excessive(too great)speed plays a major role in as much as one fifth of all fatal traffic accidents， according to the foundation．To help reduce those accidents，the foundation will conduct its tests in areas where speed-related hazards(danger)are the greatest curves，exit slopes，traffic circles，and bridges．
Some studies suggest that straight，horizontal bars painted across roads can initially cut the average speed of drivers in half．However,traffic。ften returns to full speed within months as driVers become used to seeing the painted bars．
Chevrons，scientists say，not only give drivers the impression that they are driving faster than they reallv are but als0 make a lane appear to be narrower．The result is a longer lasting reduction in highway speed and the number of traffic accidents．

The advantage of chevrons over straight, horizontal bars is that the former______.

A. can keep drivers awake

B. can cut road accidents in half
C. will look more attractive

D. will have a longer effect on drivers
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