更多“扑救油罐火灾时，消防车辆的位置应”相关的问题
有关标准氢电极的叙述中不正确的是（）。
A.标准氢电极是指将吸附纯氢气（分压101.325KPa）达饱和的镀铂黑的铂片浸在H+离子活度为1mol·L-1的酸溶液中组成的电极
B.温度指定为289K
C.任何一个电极的电势绝对值均无法测得，电极电势是指定标准氢电极的电势为零而得到的相对电势
D.使用标准氢电极可以测定所有金属的标准电极电势
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作物“S”形生长曲线按作物种子萌发至收获来划分，可分为（）。
A、缓慢增长期
B、缓慢下降期
C、快速增长期
D、减速增长期
E、稳定生长期
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税收数据的不同形态包括（）。
A . 报表
B . 信息
C . 情报
D . 知识
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二层台操作工在起钻时，要注意游车的上升位置，及时提醒钻台人员。
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变压运行的超临界参数直流炉，在亚临界压力范围和超临界压力范围内工作时，都存在工质的热膨胀现象。在亚临界压力范围内可能出现（）；在超临界压力范围内可能出现（）。
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A .
社会形态和社会基本矛盾运动规律的观点
B .
劳动价值论、剩余价值论和资本主义生产方式的本质的观点
C .
社会主义革命和无产阶级专政的观点
D .
无产阶级政党建设的观点
It is a must to preface any discussion of atoms by paying homage to Democritus, an Ionian philosopher of the fifth century B. C., the earliest known proponent of an atomic theory. Though Democritus’ idea were in many ways strikingly modern and were promulgated (传播) by his more celebrated successor Epicurus, his theory never gained wide acceptance in Greek thought. It had largely been forgotten by the time of the late Renaissance rebirth of science. While the dramatic rise of the atomic theory over the last century and a half deems to have vindicated (证明……正确) Democritus, only the Greek name atom ("indivisible") remains to establish his claim as the father of the theory. Nonetheless, Democritus’ thinking contained the seed of the idea that has dominated the twentieth-century physical thought. He was one of the first to perceive that nature on a sufficiently small scale might be qualitatively different in a striking way from the world of our ordinary experience. And he was the first to voice the hope, today almost an obsession, that underlying all the complex richness, texture, and variety of our everyday life might be a level of reality of stark simplicity, with the turmoil we perceive representing only the nearly infinite arrangements of a smaller number of constituents. Today, the notion that simplicity is to be found by searching nature on a smaller level is embedded in physical thought to the point where few physicists can imagine any other approach. Democritus’ ideas were popular among the philosophically sophisticated founders of modern physics. Galileo, Newton, and most of their contemporaries were atomists, but their beliefs were based more on intuition than on concrete evidence. Moreover, the invention of calculus had eliminated the difficulties with continuity that had in part motivated the Greek atomists, so the theory received little attention in the century following Newton’s work. Still, the atomic theory remained a popular speculation among physicists, because it offered the hope that all the properties of matter might ultimately be explained in terms of the motion of the atoms themselves. It remained for the chemists of the early nineteenth century to find the first solid empirical support for atomism without stretching the point too far, it is fair to say that in 1800 the atomic theory was something physicists believed but couldn’t prove, while the chemists were proving it but didn’t believe it.
A．His thinking dominated the twentieth-century physical thought.B．He believed that nature was quantitatively different in a smaller level.C．Everything is made up of a much subtler constituent.D．Richness is underlied by simplicity.
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题目 :输出Fibonacci数列的前15项,要求每行输出5项。 Fibonacci数列:1,1,2,3,5,8,13...........,请将程序补充完整。 #include int main() { int 【1】[15],i; fib[0]=1;fib[1]=1; for (i=2;i<15;i++) fib[i]=【2】; for(i=0;i<15;i++) { printf("%d\t",fib[i]); if ( 【3】 ) printf("\n"); } return 0; }
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89C51单片机的复位信号是（）有效。
A.高电平
B.低电平
C.脉冲
D.下降沿
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哪些是病理性呕吐？（）
A.传染病
B.急性胃炎
C.寄生虫
D.食物中毒
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Kotlin开发过程中作用域包括哪些（）
A.public：默认，总是可见
B.internal：同模块可见
C.protected：类似于private，但对子类也可见
D.private：声明范围与同模块的子作用域可见，val常量和var变量，默认都是private的
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It may be debated whether individual neurons are "tuned" to react to only a single ta...Which of the following statements about the individual gustatory neuron is true, based on information provided by the passage（）
A．It creates a neurological signal only when it comes into contact with its primary tastant.
B．Its function is not to identify tastes, but to identify similarities and differences between them.
C．Its primary importance is in distinguishing between the various qualities of a mixed stimulus.
D．It provides roughly equivalent signals when in contact with a major stimulus and a minor one.
E． It plays a fairly minor role in the across-pattern theory, compared to the labeled-line theory.
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将季铵盐加热，得到的产物主要是：（）。
A.CH3CH2CH=CH2
B.CH3CH=CHCH3
C.
D.等量的A，B
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（）是大多数碳钢在高温下进行压力加工或热处理时所需要的组织。
A.马氏体
B.铁素体
C.渗碳体
D.奥氏体
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