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【单选题】
Passage 2Italians smoke seven thousand million cigarettes every year (1987 figures). This is roughly the equivalent of 5,195 cigarettes a year for every person in the country of 20 years of age or more. It is estimated that 55% of Italian men smoke compared with 38% of Italian women. Since 1939, numerous scientific studies have been carried out to determine whether smoking is a health hazard. The findings show that tobacco smoking, particularly cigarette smoking is associated with a shortened life expectancy(寿命). Cigarette smoking is believed by most research workers to be an important factor in the development of cancer of the lungs and cancer of the throat. Male cigarette smokers have a higher death rate from heart disease than nonsmoking males. (Female smokers are thought to be less affected because they do not breathe in the smoke so deeply.) The majority of physicians and researchers say:“Give up smoking .If you don’ t smoke—don’t start!” Some competent physicians and research workers though their small number is dwindling even further-are less sure of the effect of cigarette smoking on health. They consider the increase in respiratory diseases (呼吸道疾病)and various forms of cancer may possibly be explained by other factors in the complex human environment atmospheric pollution, increased nervous stress, chemical substances in processed food, or chemical pesticides that are now being used by farmers in vast quantities to destroy insects and small animals. Smokers who develop cancer or lung diseases, they say, may also, by coincidence, live in industrial areas, or eat more canned food. Smoke is a mixture of gases, vaporized chemicals, minute particles of ash, and other solids. There is also nicotine, which is a powerful poison, and black tar .As the smoke is breathed in, all these components form deposits(沉积物)on the membranes(膜)of the lungs .While all tobacco smoking affects life expectancy and health, cigarette smoking appears to have a much greater effect than cigar or pipe smoking. However, nicotine consumption is not diminished by the latter forms, and current research indicates a causal relationship between all forms of smoking and cancer of the mouth and throat. Filters (过滤嘴)and low tar tobacco are claimed to make smoking to some extent safer, but they can only marginally reduce, not eliminate the hazards.10. Which statement of the following is NOT true according to the article?
A.
Cigarette smoking appears to have a much greater effect than cigar or pipe smoking.
B.
Current research indicates a causal relationship between all forms of smoking and cancer of blood.
C.
All tobacco smoking affects life expectancy and health.
D.
Filters (过滤嘴) and low tar tobacco are claimed to make smoking to some extent safer.
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【判断题】中药材的采收是中药生产中的关键技术之一,直接影响药材的产量与质量。()
A.
正确
B.
错误
【单选题】烤烟下部叶采收需()
A.
适时早收
B.
充分成熟采收
C.
完熟采收
D.
任何时期
【单选题】泽泻的利尿作用与采收季节的关系为
A.
秋季采收作用强
B.
夏季采收作用强
C.
春季采收作用强
D.
冬季采收作用强
E.
一年四季采收作用相同
【单选题】《杨乃武与小白菜》的事件原型发生在以下哪一时期:()
A.
清末
B.
清初
C.
明末
D.
明初
【判断题】采油工程目标就是有效提高油井产量和采收率。()
A.
正确
B.
错误
【简答题】砒霜引起的食物中毒可采用特效解毒剂巯基类药物急救。( )
【单选题】中部烟叶采收需()。
A.
适时早收
B.
工艺成熟时采收
C.
尚熟采收
D.
任何时期采收
【单选题】解救哪种药物中毒禁用肾上腺素
A.
香豆素类中毒
B.
氯丙嗪中毒
C.
阿托品中毒
D.
氨基甲酸酯类中毒
E.
磷化锌中毒
【单选题】氯丙嗪中毒可采用哪种药物解毒( )
A.
阿托品
B.
东莨菪碱
C.
去甲肾上腺素
D.
肾上腺素
【单选题】当中药中所含有效成分含量与产量最大值不一致时,应如何确定采收期()
A.
以有效成分含量最大时采收
B.
以产量最大时采收
C.
以有效成分含量与产量之和最大时采收
D.
以有效成分含量与产量乘积最大时采收
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