[单项选择]McQueen Corporation prepared the following common-size income statement for the year ended December 31, 20X7: A. Sales B. 100% C. Cost of goods sold D. 60% E. Gross profit F. 40%
参考答案:A 答案解析:20X7 gross profit is equal to $100 million ($1×250 million units sold×40% gross profit margin). The
第8题: [单项选择]为低钾血症患者静脉补钾时,其尿量要求是() A. >20ml/h或>400ml/24h B. >40ml/h或>500ml/24h C. >50ml/h或>700ml/24h D. >60ml/h或>900ml/24h E. >70ml/h或>1000ml/24h 参考答案:B 答案解析:为患者静脉补钾应先了解肾功能,遵循“见尿补钾”的原则,要求尿量每小时超过40ml,或每日尿量超过500ml。