电感耦合等离子体原子发射光谱法测定环境空气总悬浮颗粒物中金属和非金属成分时,测试结果 发布时间:2018-03-18 02:14 │ 来源:www.tikuol.com 题型:单项选择题 问题: 电感耦合等离子体原子发射光谱法测定环境空气总悬浮颗粒物中金属和非金属成分时,测试结果应保留()位有效数字。A.1B.2C.3
题型:单项选择题 女,16岁,服敌敌畏30ml后1小时入院。体检昏迷,脸色苍白,皮肤湿冷,面部肌肉小抽搐,瞳孔缩小,两肺散在湿鸣,全血胆碱酯酶活力为0。确诊为急性有机磷中毒,先用2%碳酸氢钠溶液洗胃,直到洗出液澄清、无异味为止。同时用阿托品与碘解磷定治疗,8h后神志清醒,随即将阿托品与碘解磷定减量,12h后停用上述药物,但在停药的10h后突然再次昏迷,继而呼吸停止。导致本例病情突然恶化原因为A.服毒量过多B.来院较迟C.抢救不及时D.维持用药时间不够E.用药剂量不足 查看答案
题型:单项选择题 根据句意完成句子。1. We can get ______ from the cow. When you are tired, why not drink ______ to make you excited?2. Drinking more water is ______for your health.3. I think French fries are______food.4. —______ junk food do you eat every week? —A lot of it.5. We should______enough (足够的) water every day. 查看答案