单选题
发布日期:2021-08-19
抑制酶活性
缺氧
局部腐蚀刺激作用
竞争受体
有机磷农药(OPS)是我国使用广泛、用量最大的杀虫剂。主要包括敌敌畏、对硫磷(1605)、甲拌磷(3911)、内吸磷(1059)、乐果、敌百虫、马拉硫磷(4049)等。急性有机磷农药中毒(AOPP)是指有机磷农药短时大量进入人体后造成的以神经系统损害为主的一系列伤害,临床上主要包括急性中毒患者表现的胆碱能兴奋或危象,其后的中间综合征(IMS)以及迟发性周围神经病(OPIDPN)。每年全世界有数百万人发生AOPP,其中约有30万人口死亡,且大多数发生在发展中国家。有机磷农药进入人体的主要途径有三:经口进入——误服或主动口服(见于轻生者);经皮肤及黏膜进入——多见于热天喷洒农药时有机磷落到皮肤上,由于皮肤出汗及毛孔扩张,加之有机磷农药多为脂溶性,故容易通过皮肤及黏膜吸收进入体内;经呼吸道进入——空气中的有机磷随呼吸进入体内。口服毒物后多在10分钟至2小时内发病。经皮肤吸收发生的中毒,一般在接触
机制,是指各要素之间的结构关系和运行方式。指有机体的构造、功能及其相互关系;机器的构造和工作原理。语出清 丘逢甲 《汕头海关歌寄伯瑶》:“西人嗜糖嗜其白,贱买赤砂改机制。”在社会学中的内涵可以表述为“在正视事物各个部分的存在的前提下,协调各个部分之间关系以更好地发挥作用的具体运行方式。”
《上瘾(Overdose)》是EXO迷你二辑《上瘾(Overdose)》的同名主打曲,发行于2014年5月7日。分为EXO-M的中文版本《上瘾 (Overdose)》以及EXO-K的韩文版本《중독 (Overdose)》,由Kenzie作曲,韩文版由Kenzie、January 8th作词,中文版歌词则由黄贞颖完成。
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Practice 1 France today is no superpower, but French influence in some spheres is significant. Nothing has cemented French influence in the world like the decision made by the victorious World War II powers in 1945 to include France as one of the five permanent, veto-wielding members of the Security Council. Until the end of the Cold War, France rarely found itself in disagreement with Britain or the U.S. on major issues. But the U. N. veto today takes on larger significance as France struggles to decide whether it wants to lead the European Union in defiance of American power or in partnership with it. As America’s great media outlets have begun preparing for coverage of the D-Day celebrations, the question of a “grand gesture” by the French toward the American war in Iraq, has been raised. Administration officials hint that. perhaps,just perhaps,the French President wm use the occasion of France's rescue as an opportunity to square the accounts—to issue a blanket endorsement of America 78 plan for Iraq’s future and throw its support behind the transfer of power looming at the end of the month. France certainly wants the United States-to be successful in Iraq at this point. But France seems unlikely to see D-Day as an opportunity to make good on a 60-year-old debt. Beyond nice speeches and some truly fine cuisine, don't expect France to liberate America from Iraq.
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