更多“。2004年1月，中国公司又与美国公司在中国的全权代理人签订”相关的问题
关于群体动力理论观点正确的有（）
A．“场”理论最初用于研究群体行为B．行为公式为B=F（P，E.C．“场”理论最初用于研究个体行为D．“场”论借用了物理学概念E．创始人是德国社会心理学家卢因
B．行为公式为B=F（P，E.C．“场”理论最初用于研究个体行为D．“场”论借用了物理学概念E．创始人是德国社会心理学家卢因
C．“场”理论最初用于研究个体行为D．“场”论借用了物理学概念E．创始人是德国社会心理学家卢因
D．“场”论借用了物理学概念E．创始人是德国社会心理学家卢因
E．创始人是德国社会心理学家卢因
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Passage Four A biological clock is what tells plants, animals, and other organisms how to organize their time. This ‘clock’ helps plants and animals change their routine when they move to places with different climates and environments. Most biological clocks are based on the movement of the sun and follow a twenty-four hour cycle called a circadian rhythm. Some animals sleep only at night, making them diurnal. Animals that sleep during daytime are nocturnal. Flowers are diurnal because they close their petals at night but they open again in the morning. Bats sleep in the daytime so they are nocturnal. Some biological clocks also follow an annual cycle, especially in animals that have annual migrations. Animals that have annual cycles do different things at different times of year. Their actions are determined by the seasons. Different animals can live in the same area when their biological clocks make them look for food at different times of day. This process also keeps them out of each other’s way. Biological clocks help plants and animals prepare for changes in the seasons. Animals need to know what time of year to reproduce so their offspring will be born when the conditions for survival are good. Human beings’ sleep cycle is a circadian rhythm, a system based on the twenty-four hour day. In the circadian rhythm most humans sleep at night. When people travel to different time zones their biological clocks have to adjust. In humans, the biological clock is in a group of cells called the suprachiasmatic nucleus (SCN.) The SCN is located near the bottom middle part of the brain. Scientists are continuing to research the biological clock and circadian rhythms. Scientists discovered the first circadian gene in a mammal (a mouse) in 1997. It is only a matter of time before your own biological clock will tell YOU the time!
A．Because they look for different types of food.B．Because their conditions for survival are good.C．Because they do different things at different times of year.D．Because their biological clocks keep them out of each other’s way.
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解决人类面临的诸多重大问题需要各国相互合作。回答8~9题。.1930年，美国通过法案提高进口关税。这一行动引起连锁反应，各国纷纷调高关税。这反映了经济危机爆发后，西方国家（）
A.一致提高关税，共度难关
B.设置关税壁垒，转嫁危机
C.整顿金融体系，扩大内需
D.实行国家干预，限制出口
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以下对时延要求最敏感的是?()
A、embb
B、mmtc
C、urllc
D、td-lte
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固定设备紧固件完好标准（）。
A.螺纹连接件和锁紧件必须齐全牢固可靠
B.螺栓头部和螺母不得有铲伤或棱角严重变形螺纹无乱扣或脱扣
C.铆钉必须紧固不得有明显歪斜现象
D.用增加垫圈的办法调整螺纹露出长度
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已知i 1 =10sin(314t+90)A,i 2 =10sin(314t+60)A,则( )
A. i 1 超前i 2 30° B. i 1 滞后i 2 60° C. 相位差无法判断
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白兰地杯杯形酷似郁金香，酒杯腰部丰满，杯口（）。
A、很宽
B、缩窄
C、极细
D、大于杯底
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放射性131I
A.抑制甲状腺素合成
B.抑制甲状腺素释放
C.抑制甲状腺激素的外周作用
D.破坏甲状腺滤泡细胞
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属于偷渡的特点有（）
A . 组织偷渡的集团一般在国内有组织者、运送者，国外有接应人员
B . 通过制作假护照等证件，组织偷渡人员从口岸偷渡出境
C . 偷渡人员具有明显的区域性
D . 以上都是
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感染流感病毒是患流行性感冒的（ ）。A．可能病因B．不充分不必要病因 C．充分且必要病因D．充分但不必要病因 E．必要但不充分病因
A.可能病因B．不充分不必要病因
B.充分且必要病因D．充分但不必要病因
C.必要但不充分病因
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组成华山的是哪些峰（）
A.玉女峰
B.朝阳峰
C.莲花峰
D.落雁峰
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普通車ではなくグリーン車ですと、ゆったり（ ）。
普通車ではなくグリーン車ですと、ゆったり（ ）。
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关于寄生虫病流行的基本环节，哪项是正确的______
A.传染病、传播途径、老年人
B.传染源、传播途径、易感人群
C.患者、传播途径、易感人群
D.动物、传播途径、易感人群
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微机监测采集分机检修各板卡指示灯显示正常，无异常，（）。
A.有报警
B.有电
C.无报警
D.亮灯
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