In C language, the result of the logical ______ operator is 1 if the value of its operand is 0, 0 if the value of its operand is non-zero.
A．AND
B．NOT
C．OR
D．EOR
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Yesterday my grandfather told me about his early days. When he left school, he found a job in a post office. He worked hard in the . Soon he had more money than his friends his hard work. It seemed that he would have a bright future. When he was 25 years old, however, he began to his job. He wanted a more exciting one, so he left the post office. Two months later, he found a new job in a big company. Workers in this company traveled a lot. At first he really enjoyed the traveling. after a year, he began to hate it. He had to and he was always in a car or on a train. The worst thing was he couldn’t make any new friends! Even so, his boss was not satisfied with him. Two years later he had to leave the company. He was at that time, so he sold his house. He had to accept a part time job in a book shop. He was surprised to find he loved it! He made new friends every day and he enjoyed reading books. Three years later, he the shop owner’s daughter. Soon they had their first child. In the next ten years, they had another three and four more book shops! He became very rich indeed. “Life is ,” he told me. “The most important thing is that you should always try your best. Never give up!”
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社会和谐，是人类自古以来的梦想。当前随着经济社会的发展和城市化进程的加快，和谐理念越来越为人们所接受。尤其是“三大和谐”的理念，即“人与人的和谐，人与自然的和谐，历史与未来的和谐”。这些理念反映了人类活动是（ ）
①在实践中不断思考人与外部世界的关系，追求自身的完善和发展
②以研究万事万物的共同本质和规律，形成正确价值观为根本目的
③在认识和改造世界的过程中实现个人与社会、主观与客观的统一
④发挥人的本质能力，有意识地利用和改造自然规律为人类谋福利
A．①②
B．①③
C．②④
D．③④
2005年10月12号我国“神舟六号”飞船进行了多人多天的太空飞行，飞船的火箭使用的燃料是偏二甲肼X，燃烧的化学反应方程式为X+2N2O4一3N2+2CO2+4H2O，则X的化学式为（ ）
A．H2
B．CH4
C．C2H8N
D．C2H8N2
2010年上半年某市各类经济成分在本地GDP增长中的贡献率如下图
分析上图，可以得出
[ ]A．非公有制经济在当地经济发展中居于主体地位
B．该市的国有经济在社会总资产中占优势
C．该市形成了公有制为主体、多种所有制经济共同发展的格局
D．混合所有制经济在该市GDP增长中发挥着主导作用
资产评估机构作弊或者玩忽职守，致使资产评估结果失实的，( )可以宣布资产评估结果无效，并可以根据失实程度，责令限期改正或者重新进行评估，重新进行评估的费用由违法单位支付。
A．财政部门
B．国有资产监督管理机构
C．财政部门或国有资产监督管理机构
D．资产评估行业管理部门