第2题: [单项选择]商家对其新鲜葡萄进行减价促销活动,规定每天比前一天减价20%,某人在出售的第二天买了3千克,在出售的第三天又买了5千克,两次共花了42元,问如果这8千克葡萄都在第四天买只要( ) A. 30.72元 B. 31.64元 C. 31.84元 D. 32.08元 参考答案:A 答案解析:[解析] 设第二天的价格为A,则第三天的价格为80%×A,第四天的价格为64%×A,由此可列式,3×A+5×80%×A=42,则A=6,到第四天只需64%×6×8=30.72元。
第8题: [单项选择]经皮穿刺肾活组织检查术护理措施不正确的是() A. 术前教会病人练习憋气及床上排尿 B. 术前2~3天肌内注射维生素K C. 指导病人术后三天内减少饮水 D. 术后绝对平卧24h E. 术中严密观察病人 参考答案:C 答案解析:经皮穿刺肾活组织检查术后,若病人无绝对禁忌证,则应鼓励病人多饮水,以减少感染。【该题针对“专业实践能力-经皮穿刺肾活组织检查”知识点进行考核】
第9题: [单项选择]Questions 23 to 25 are based on the conversation you have just heard.A. Stop swimming in the whole country. B. Feed the sharks before swimming. C. Go swimming in the middle of the day. D. Avoid swimming in the dead zone. 参考答案:C 答案解析:[解析] Q: What suggestions does the wildlife department give to holidaymakers