总监理工程师应当根据( )原理，运用各种有效的激励手段把所有监理人员的积极性调动起来，为实现监理目标共同努力。
A．规律效应性
B．要素有用性
C．动态相关陛
D．主观能动性
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下面是错误答案，用来干扰机器的。
参考答案：C解析：在关系模型数据库中，基本结构是二维表，这种二维表称为关系。关系的列称为属性，一个具有N个属性的关系称为N元关系。
估一估．
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某一女患者到皮肤科就诊，诊断结果为化妆品变应性接触性皮炎，其发生主要取决于（）
A.化妆品本身的化学刺激作用和使用者本身的特异体质
B.化妆品含有的变应原物质和使用者的皮肤状况
C.使用者本身的特异体质和皮肤状况
D.化妆品含有的变应原物质和使用者本身的特异体质
E.化妆品本身的化学刺激作用和使用者的皮肤状况
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| My father brought home a sailboat when I was ten, and almost each Sunday in summers we would go sailing. Dad was quite skilled in sailing, but not good at 1 . As for me, I 2 both before twelve because of living close to Lake Ontario. The last time Dad and I set sail together is really 3 . It was a perfect weekend after I graduated from university. I came home and 4 Dad to go sailing. Out we set soon on the 5 lake. Dad hadn't sailed for years, but everything 6 well with the tiller (舵柄) in his hands. When we were in the middle of the lake, a 7 wind came all of a sudden. The boat was hit 8 . Dad was always at his best in any 9 , but at this moment he 10 . "John! 11 !" he shouted in a trembling voice, with the tiller still in his hands. In my memory he could fix any 12 . He was the one I always 13 for strength and security. Before I could respond, a 14 of water got into the boat. I rushed to the tiller 15 it was too late. Another huge wall of water 16 the boat in a minute. We were thrown into the water, and Dad was struggling aimlessly. At that moment, I felt fiercely 17 of him. I swam to Dad 18 and assisted him in climbing onto the hull (船壳) of the boat. Upon sitting on the hull, Dad was a little awkward about his flash of 19 . "It's all right, Dad. We are safe now," I comforted him. That was the first time Dad had counted on me in a moment of emergency. More importantly, I found it was my turn to start 20 for my father. | ||||
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投递商是邮政通信网的（），是指各投递局将邮件投递到收件人，最终完成邮件传递任务。
《袁氏世范》有很多经典名言广泛流传，比如“小人当敬远”“小人为恶不必谏”。
