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Practice 1 Are you a real grump (脾气坏的人) in the mornings? Do you wake up every day feeling tired, angry and upset, and all too ready to flit the snooze (瞌睡) button? If so, then a new alarm clock could be just for you. The clock, called SleepSmart, measures your sleep cycle, and waits for you to be in your lightest phase of sleep before waking you up, Its makers say that should ensure you wake up feeling refreshed (恢复精力) every morning. As you sleep you pass through a sequence of sleep states—light sleep, deep sleep and REM sleep (快速眼动睡眼)—that repeats approximately every 90 minutes. The points in that cycle at which you wake can affect how you feel later, and may even have a greater impact than how long or little you have slept. Being wakened during a light phase means you are more likely to wake up cheerful and full of life and interest. SleepSmart records the distinct pattern of brain waves produced during each phase of sleep, via a headband equipped with electrodes (电极) and a microprocessor. This measures electric activity of the wearer’s brain, and communicates wirelessly with a clock unit near the bed. You program the clock with the latest time at which you want to be wakened, and it then at the proper time wakes you during the last light sleep phase before that. The concept was invented by a group of students at Brown University in Rhode Island after a friend complained of waking up tired and performing poorly on a test. “As sleep-deprived (剥夺) people ourselves, we started thinking of what to do about it,” says Eric Shashoua, a recent college graduate and now chief executive officer of Axon Sleep Research Laboratories, a company created by the students to develop their idea. They have almost finished a prototype and plan to market the product by next year.
把下面的六个图形分为两类，使每一类图形都有各自的共同特征或规律，分类正确的一项是：
下列不适于痤疮治疗的是
药品生产企业未按照规定提交药品召回的调查评估报告和召回计划、药品召回进展情况和总结报告的（）
在进入洞穴时为什么要点火把？
没有泡过的干茶叶属于哪类垃圾？
认为一切物质都具有在本质上与感觉相近的反映特性，这是一种（）。
某顾客从某百货公司买得一台电视机，于2004年4月26日按使用说明书使用时，该电视机发生爆炸，造成顾客右眼失明的严重后果。后经产品质量检测部门鉴定，该电视机本身存在缺陷。该生产厂家不同意为其安排工作，顾客甲与该生产厂家发生纠纷，该纠纷可以通过协商或调解解决，如果协商或调解不成，顾客甲要想获得合理赔偿，只能向人民法院起诉。判断是否正确？并说明理由。
符合阻塞性黄疸诊断的是（）
皮肌炎类型：①（）②皮肌炎③合并恶性肿瘤的皮肌炎或多肌炎④儿童皮肌炎或多肌炎⑤合并其他结缔组织病的皮肌炎或多肌炎⑥无肌病性皮肌炎。
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