下列关于噪声源噪声级数据获得途径的要求，说法错误的是( )。A．在噪声预测过程中，

发布时间：2017-05-25 07:11 │ 来源：www.tikuol.com

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问题：

下列关于噪声源噪声级数据获得途径的要求，说法错误的是( )。

A．在噪声预测过程中，应选取与建设项目的声源具有相同的型号、工况和环境条件的声源进行类比测量，并根据条件的差别进行必要的声学修正

B．为了获得噪声源噪声级的准确数据，必须严格按照现行国家标准进行测量

C．引用类似的噪声源噪声级数据，必须是公开发表的、经过专家鉴定并且是按有关标准测量得到的数据

D．采用类比测量法在报告书中应当说明噪声源噪声级数据的测量方法标准，如是引用已有数据也须指明被引用数据的来源

考点：环境影响评价技术导则与标准环境影响评价技术导则与标准

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(1).等量药物引起与一般病人相似但强度更高的药理效应或毒性，该现象属于（）。
(2).长期反复用药后，一旦停药即产生戒断症状，该现象属于（）。
(3).多次用药后病原体对药物反应性降低，该现象属于（）。
(4).多次用药后机体对药物反应性降低，该现象属于（）。

A.成瘾性

B.高敏性

C.耐药性

D.耐受性

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清政府闭关锁国，与世隔绝，看不到世界形势的变化，针对如何睁眼看世界，魏源写了一部名著是 [ ]

A．《制碱》

B．《天演论》

C．《海国图志》

D．《新青年》

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混凝土结构工程由模板工程、（）和混凝土工程组成。

A.基础工程

B.钢筋工程

C.单位工程

D.混凝土工程

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设有如下说明typedef struct ST {long a;int b;char c[2];}NEW;则下面叙述中正确的是______。

A．以上的说明形式非法

B．ST 是一个结构体类型

C．NEW 是一个结构体类型

D．NEW 是一个结构体变量

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Western juries have traditionally found eyewitness testimony to be the most convincing evidence in criminal trials. Seeing is believing, as the saying goes. In numerous cases, when witnesses pointed to the defendant, his or her fate was sealed. But how reliable is eyewitness testimony Recent cases have suggested that despite our best intentions, we may unwittingly distort what we perceive.
Artists and psychologists have long known that "seeing" is not a simple matter of recording visual input. People perceive the exterior world through a complex matrix of cultural expectations, personality traits, moods and life experiences. For example, researchers tested the cultural influence on perception by showing a set of optical illusions to various groups, and found that different groups responded in divergent ways. Accustomed to and inundated by perpendicular structures, Western Europeans succumbed easily to illusions based on rectangular lines. On the other hand, the Zulu people of South Africa, whose environment had been comprised almost entirely of circular forms (round houses, doors, etc.) did not fall prey to those linear illusions.
Cultural expectations also influence the selectivity of our seeing. The amount of visual information that exists far exceeds our ability to process it, so we must filter that sensory input into recognizable images. In looking at a face, we do not see elongated ovals set in complex shadows and shading, we see eyes. And that filtering process is informed by what we perceive to be significant, which is influenced by cultural norms. Some cultures may emphasize differences in hair color or texture, others the shape of a nose or mouth, others the set of the eyes.
But it is not only group expectations that color what we see, personality and mood fluctuation can also alter our perceptions. Orderly minds who shun ambiguity will see an off- center image as firmly fixed in the center. The same photograph of four young men allows for shifting interpretations based on our current feeling: a mood of happiness reveals boys enjoying a relaxing day, while anxiety changes the picture to students worrying about exams.
In addition, numerous more prosaic factors affect our ability to record an image accurately. Duration of the encounter, proximity to the subject, lighting, and angle all affect our ability to see, and even stress may further undermine the accuracy of our perceptions.
What will this mean for criminal trials Juries have often been reluctant to convict without eyewitness identification. Blood samples, fingerprints, and the like do not resonate as deeply with juries as does direct testimony, and frequently require understanding of complex scientific technicalities. But as confidence in eyewitness testimony wanes, such circumstantial evidence may someday replace visual identification as the lynchpin of criminal trials.

In the passage, all the following are the true factors to affect our perceptions EXCEPT ______ .

A．personality traits

B．mood fluctuations

C．cultural expectations

D．changes in the weather

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