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题目:
单选题
读图回答下列问题。该地区地表水资源缺乏的原因()

A土层厚、植被多,蓄水能力强
B多溶洞、暗河,地表水流失快
C年降水量较丰富,季节变化大
D人口密集,水田面积大,用水量大
答案:
<查看本题扣1积分>
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三相异步电动机的额定电流是电动机额定运行时的线电流。
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治疗癌症晚期顽固性疼痛药物是()
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10个月男婴,因腹泻3天入院,病后每天排水样便10余次,量较多,2天来尿少,近12小时无尿。体检:前囟略凹陷,哭无泪,皮肤弹性差,肢端凉,在补钾时哪项不正确()
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货运经营许可程序是()。
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Commuting to work in Chicago is no【C1】______, for the roads there are even more crowded than in San Francisco. But here is how the city of Chicago is handling the problem. "We dont have rash hours any more," said Charles M. Mclean, who runs the nations busiest road. "We have rash periods, and they keep【C2】______longer and longer. " In Chicago, a【C3】______system has been developed that controls【C4】______the citys seven expressways. Now, one mana controller can【C5】______the movement of Chicagos traffic【C6】______looking at a set of lights. The system uses electronic sensors that are built into each expressway, half a mile【C7】______. Several times a second, the computer【C8】______information from each sensor and translates it into green, yellow or red lights on a map in the control room. "See that red light near Austin Avenue?" the controller asked a visitor, "Thats a repair truck【C9】______the road, and the traffic has to go【C10】______it. " At the Roosevelt Road entrance【C11】______the expressway, the light kept【C12】______from green to red and back to green again. "A lot of trucks get on the expressway there. " the controller explained. "They cant speed up as【C13】______as cars. " The sensors show【C14】______where an accident or a stopped car is blocking traffic,【C15】______a truck is sent by radio to clear the road. The system has lowered the【C16】______of accidents by 18 percent. There are now 1. 4 deaths on Chicagos expressways for each one hundred million miles traveled,【C17】______in other parts of the country there are 2. 6. Traffic experts say that the Chicago system is the "coming thing". Systems like Chicagos are already in use on some expressways in Los Angeles and Houston. "Chicago has【C18】______the lead," says New York Citys【C19】______director; and he adds, "we are【C20】______".【C1】A.cheerfulB.pleasantC.happyD.pleasure
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卢梭的公意说。
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患者王某,男,16岁。昨日饮冷后出现脘腹疼痛拒按,得温稍缓,伴身热恶寒,口不渴,但欲得热饮,舌淡红苔薄白,脉弦紧。患者应诊断为()。
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某男,32岁。咳喘已近年余,胸闷痰多,白滑易出,舌苔白腻,脉滑。临床诊断最可能是()。
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程广云在《民国三大政治遗产:人民主权·以党治国·政治协商》中认为:“政治协商应该是不同意识形态政党超越意识形态达成的一种公共政治行为,是在不同意识形态集团中建立的一种共识机制。”对此理解正确的是()
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关于数字签名,下面________是错误的。