第7题:[简答题]<br><br><br/>参考答案:the time when the work was created 答案解析:[定位] 由线索词定位到文章第十二段Depending on when the work was created, the period of copyright protection begins
第22题: [单项选择]Butter and bread ______ their daily food, but the bread and the butter up now. A. is; is eaten B. are; have been eaten C. are; are eaten D. is; have been eaten 参考答案:D 答案解析:[解析] “butter and bread”是单数名词,意思是“抹黄油的面包”或“面包抹黄油”,故动词用单数形式,排除B项和C项;“the bread and the butter”是指“面包和黄油
第31题: [单项选择]近端肾小管酸中毒主要的诊断标准是() A. 尿中HC0增多,尿pH﹤5.5,高氯低钾血症 B. 尿中NH减少,尿pH﹥6.0,高氯低钾血症 C. 高血氯性代谢性酸中毒伴高钾血症 D. 尿中NH减少,HC0增多 E. 肾性糖尿、氨基酸尿和低钾血症 参考答案:C 答案解析:近端肾小管酸中毒诊断标准:①高血氯性酸中毒。②氯化铵负荷,可使尿pH降至5.5以下。③碳酸氢钠负荷,滤过HC0排泄分数应﹥15%。具备第①~③项即可诊断。