【简答题】"Why would you leave behind your comfortable bed, your home, your family and friends? Why do you want to go alone?" When you are living out of a backpack for a period of time, you may often get questi...
【单选题】Once you________drugs, it's hard to manage to get rid of them. [ ]
【单选题】砷及其化合物在工业上的应用颇广,并具有很强的毒性,除草剂、杀虫剂、防腐剂、涂料及许多合金中都有它们的身影,这导致水中砷污染日益严重。研究人员最近发现,烟灰可以制成净水材料,用来净化水中的砷。实验显示,这种材料能成功地把一杯含砷量为233微克/升的水降到8微克/升(净化量超过了96%),达到世界卫生组织的要求。因此,这种净水材料可以用作过滤器,在全国进行推广。 以下哪项如果为真,最能加强上述观点?
A.
批量生产净水材料需要大量烟灰,但现今还未找到获得的途径
C.
烟叶中含有多种重金属及其他有害物质,会残留于灰烬中
D.
该净水材料只对水中的砷有过滤作用,但对其他有害物质则起不到净化作用
【简答题】Workplace success! How can you get the job you want? And once you’ve got it — how can you keep it? Our three-week online course takes you through the whole process: from finding your ideal job to maki...
【单选题】Once you ______ the habit of smoking, it is hard to quit.
【简答题】The quest for success always begins with a target. As Berra once said , "you get to be very careful if you don't know where you're going, because you might not get there." Too many people wander throu...
【单选题】患者女,65岁。因右乳腺癌术后4年,腰痛1个月入院。查体第4、5腰椎压痛。查全身骨扫描以及腰椎MR提示为腰椎转移。患者疼痛较为剧烈,并且活动受限。 以下康复护理措施不对的是
A.
按照世界卫生组织推荐的癌症疼痛三阶梯治疗方案给予药物止痛治疗
C.
该患者已达癌症终末期,针对其癌痛情况,应给予心理疗法,包括对患者关怀给予充分的精神支持,以减轻其痛苦
D.
对患者进行康复护理,将其安排在安静、光线柔和、室温和湿度适宜、无刺激性气体的环境