[单项选择]In 1970, the United States was still by far the most productive of countries in the world, with a gross national product of $ 1, 014, 750 million which {{U}}amounted{{/U}} to $ 4,950 per person. A. worked up to be B. worked in being C. worked on being D. worked out to be
参考答案:D 答案解析:worked up to be:逐渐达到……;worked in being:参加……; worked on being:继续工作……;worked out to be:算出,总共达……。题中 amo
第15题: [单项选择]女性,53岁,乙状结肠癌,拟明日行乙状结肠根治术,术前护士遵医嘱为该病人行全肠道灌洗术,以下说法正确的是() A. 温度约为25℃ B. 灌洗液量约3000ml左右 C. 灌洗速度应先慢后快 D. 灌洗全过程应控制在2小时内 E. 年迈体弱,心肾等脏器功能障碍以及肠梗阻者,不宜选用 参考答案:E 答案解析:灌洗液为37℃等渗平衡电解质液,总量达6000ml以上,于术前12~14小时开始口服。开始口服灌洗液的速度应达到2000~3000ml/h,开始排便后可适当减慢速度至1000~1500ml/h,直至排