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内部过电压的数值一般可达相电压的（）倍。
惊蛰是二十四节气之一，惊蛰之后气温回升较快，渐有春雷萌动。（ ）
项目信息管理的目的旨在通过有效的项目信息( )的组织和控制为项目建设的增值服务。
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.What is the main purpose of paragraph 2～4?
实施可持续发展战略必须正确处理经济发展与（ ）的关系。
男，58岁，右颈部肿块3个月，CT示右咽隐窝和耳咽管闭塞，局部有软组织密度肿块，颈部淋巴结肿大，诊断（ ）。
（）就是对信息进行组织、控制、加工、规划等，并将其引向预定的目标。
饮白兰地酒的最佳温度为摄氏10度以上。
以下哪一个不是心理健康的标准（）
CDMA2000接收机结构是（）。
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合同保证保险的保险金额与工程合同中规定的被保证人应承担的经济赔偿责任一致，一般不超过工程总造价的（）。
合同保证保险的保险金额与工程合同中规定的被保证人应承担的经济赔偿责任一致，一般不超过工程总造价的（）。
不定值保险
合同保证保险的保险金额一般不超过工程总造价的（ ）。
合同保证保险的保险金额要与工程合同中规定的被保险人应承担的经济赔偿责任一致，一般不超过工程总造价的（）。
合同保证保险的保险金额一般不超过工程总造价的（ ）。
按照保险金额与实际价值的对比关系，足额保险合同是指保险金额等于保险合同签订时保险标的的实际价值的保险合同。
综合保险合同是指保险人对承保的多数保险标的仅确定一个总的保险金额，而不分别规定保险金额的保险合同。在人身保险中，综合保险合同多用在团体健康保险和意外伤害保险中。
超额保险合同即保险金额高于保险价值的保险合同。保险金额不得超过保险价值。超过保险价值的，超过部分无效，保险人应当退还相应的保险费。
不足额保险合同即保险金额低于保险价值的保险合同。保险金额低于保险价值的，除合同另有约定外，保险人按照保险金额与保险价值的比例承担赔偿保险金的责任。