紫外线对人体的危害主要是造成皮肤和眼睛的伤害,其引起的原因是紫外线的()。
A.热作用
B.光化学作用
C.电离作用
参考答案:B
第二节:语法填空(共10小题,每小题1.5分,满分15分)
阅读下面短文,根据上下文填入适当的词语,或使用括号中的词语的适当形式填空,并将答案在答题卡上标号为26-35的相应位置涂黑。
A few years ago, SARS broke out in the mainland of China, ____26____ (cause) some people to be killed or nearly got close to____27_____ (die). The situation was so severe _____28___ there was no time to debate who is to blame. The most important thing for the government to do is to find out ____29____ cause of this deadly disease. They invited all the most experienced experts in this field to discuss and quite a few suggestions ____30____ (put forward). Some of the top experts then tested them to see ____31____ they were available. Doctor Zhong Nanshan chose one patient who was ___32___(serious) ill and had little hope of picking up and had the new medicine ____33____(test) on him. To his great joy, this patient recovered! He made his way to his office and telephoned the top official, telling him this exciting news. ___34____ convenience, he moved to live in his office. His method did make sense. Not soon after that, the other hospitals also controlled this terrible disease ___35___ kicked it out finally.
男,51岁,重症肺炎患者,入院后次日病情加重,突发持续性呼吸急促,发绀,伴烦躁,呼吸频率38次/分,心率108次/分,律齐,两肺可闻及湿啰音。血气分析:pH7.34,PaO50mmHg,PaCO30mmHg。胸片示两中下肺纹理增多模糊,斑片状阴影,心胸比例正常。
对输液的要求是()
A.入量>出量(>500ml)
B.入量>出量(>600~1000ml)
C.入量=出量
D.入量<出量(<500~1000ml)
E.不限制胶体溶液