牙再植术成功的判断标准为行使功能达（）

[单选题]A Business Partner is looking for competitive information on HP. From the following choices, whatis the best source for this information?（）

[单选题]Passage 1People often complained about not getting"a good night's sleep", but sleep patterns differ from person to person. Most adults require six to eight hours of sleep to function well, while others survive on only a few hours. Still, most people today think of sleep as one continuous period of downtime. This is not the way people used to sleep. According to researchers in earlier times, people divided sleep by first sleep a few hours, waking up, then going back to sleep.Before the 18th century, people had no gas or electricity in their homes. Fire, candles, or oil lamps were the common forms of lighting. This lack of artificial lighting in homes contributed to people's sleep patterns. It made sense for people to go to bed early. If you live in this time period, you might be a hard-working farmer, and you would come home, eat and quickly fall into bed exhausted. You would probably go to sleep at 9:00 or 10:00 P.M. In this first period of sleep-called first sleep-you would typically sleep until midnight or shortly afterwards.Halfway through the night during a period some call the watch, or watching period. When you came out of first sleep, you would stay in bed and relax quietly. You might talk with a bedfellow, meditate on the day's events or the meaning of a dream, or just let your mind wander. If you enjoyed writing or drawing, you might get out of bed to write a poem or story or draw a picture.Then you would start to feel sleepy, so would return to bed and fall asleep again for your second sleep. This period would continue until early morning when daylight arrived. Again, with no artificial lighting in homes, people naturally woke up early to take advantage of sunlight.Today, human may consider divided sleep a strange habit, but sleep researchers say that it is actually a more natural sleep pattern. Dr. Thomas Wehr of the U.S. National Institute of Mental Health has studied human sleep. He thinks that modern sleep problems occur because the orderly, natural way of sleep is breaking through the more recent continuous sleep pattern. Wehr and other scientists believe that artificial lighting has altered the way people sleep. In a research study, he asked 15 adults to rest and sleep in darkness for 14 hours(from 6:00 P.M. to 8:00 A.M.). At first, the subjects took a few hours to get to sleep, and then slept 11 hours a night. Then overtime, they switched to divided sleep. They fell asleep for about 3 or 5 hours in the evening, stay awake for an hour of two and the slept again for four hours till early morning.Unlike the people in the study, we modern humans generally do not practice divided sleep. However, many of us have the experience of waking up in the middle of the night. We usually consider this a sleeping "problem", but perhaps we should look at it as natural behavior. Divided sleep may be the way we should all be sleeping.A first sleep followed by a relation period and a second period of sleep could help all of us to beat the stress of our fast-paced lives.In paragraph 5, what does the research study suggest about divided sleep?

[单选题]对地下水的防治主要可以采取三方面的措施，下列哪项不是？（）

[单选题]矫正幼儿口吃的重要原则性方法是（）。

[名词解释题]有限法偿

[多选题]下列各项关于企业采购环节内部控制措施的表述中，错误的有（）。

[单选题]关于甲亢手术治疗，下列哪项叙述是正确的（）

[配伍题]全身照射法基本进度末次剂量是（　）|全身照射法加速进度末次剂量是（　）|全身照射法缓慢进度末次剂量是（　）

[问答题]激光打印机的基本原理和热升华打印机基本原理。

[单选题]患者，男，60岁。全口义齿修复，戴牙3天后诉戴牙后下牙床疼痛。检查：下颌牙槽嵴左侧颊面黏膜一局限性破损，有压痛，触有小骨突。正确的处理是（）