题目

应激是机体在遭遇内外环境剧烈刺激时所产生的一种全身性非特异性适应性反应,其中能引起应激反应的因素称为应激原。应激反应过程如下图所示。 (1)人在遭遇惊吓时,肾上腺素分泌的调节方式是________,此时,人常表现出面色苍白,原因是________________________________。(2)机体在应激状态下,糖皮质激素与胰高血糖素在调节血糖浓度时存在_______作用,使血糖浓度升高,保证机体重要器官的能量供应。为验证应激时糖皮质激素能促进胰高血糖素的阅读下面材料,在空白处填入适当的内容(不多于3个单词)或括号内单词的正确形式。The way we cook is important. In many countries, the two choices are 【1】(nature) gas or electric-powered stoves.The World Health Organization warns that millions of people【2】 (suffer) from indoor air pollution at present time, which results from the use of【3】 (danger) fuels and cook-stoves in the home.WHO officials say nearly three billion people are 【4】 (able) to use clean fuels and technologies for cooking ,heating and lighting. As a result, more than seven million people die from exposure to indoor or outdoor air pollution each year. Most of the deaths are in 【5】 (develop) countries, such as lndia, China and Latin American countries.WHO officials say opening a window or door 【6】(let)out the harmful air will not correct the situation 【7】 will only pollute the outdoors.Nigel Bruce, 【8】 is a professor of Public Health at the University of Liverpool, says researchers are developing good cook-stoves and other equipment to burn fuels 【9】 a more efficient way.
生物 试题推荐