SART表面的颜色应为（）

At the University of Kansas art museum, investigators tested the effects of different colored walls on two groups of visitors to an exhibit of paintings. (在堪萨斯大学的艺术博物馆，研究者将来参观油画展览的人分成两组，测试不同颜色的墙对人的影响。)For the first group the room was painted white; for the second, the room was painted dark brown. Movement of each group was followed by an electrical system under the carpet. Investigators made careful observations and analyzed the data gathered and compared the differences between the two groups. The experiment revealed that those who entered the dark brown room walk more quickly, covered more area, and spent less time in the room than the people in the white environment. So the conclusion can be reached like this: dark brown stimulate more activity, but the activity ended sooner.

Not only the choice of colors but also the general appearance of a room communicates and influences those inside. Another experiment presented subjects(受试者) with photographs of faces that were to be rated in terms of energy and well-being. Three groups of subjects were used; each was shown the same photos, but each group was in a different kind of room. One group was in an "ugly" room that resembled a messy storeroom. Another group was in an average room-a nice office. The third group was in a tastefully designed living room with carpets and curtains. Results showed that the subjects in the beautiful room tended to give higher ratings to the faces than did those in the ugly room. Other studies suggest that students do better on tests taken in comfortable, attractive rooms than in ordinary-looking or ugly rooms.

1.Investigators followed the movement of the two groups by ______.

A.an exhibit of paintings

B.constant observation

C.an electric device

D.the carpet

2.The first experiment showed that people who entered the white room ______ than the people in the dark brown room.

A.stayed longer in it

B.spent less time in it

C.were more active

D.walked more quickly

3.In the second experiment the subjects were asked to decide ______.

A.whether the people in the photos were bright or not

B.how energetic and healthy the people in the photos were

C.whether they liked the people in the photos or not

D.what mood the people in the photos were in

4.If students are to get better marks in exam, it's better to ______.

A.arrange them to sit in ordinary-looking rooms

B.decorate their bedrooms tastefully

C.ignore the environment they are in when they are taking exams

D.provide them with comfortable, nice rooms for taking the exam

5.The main idea of the passage is that ______.

A.studies make clear the effects of the color of a room on people's behavior

B.the color of a room affects the behavior. of the people in it

C.the color and general appearance of a room influence the behavior. and attitude of the people in it

D.beautifully decorated rooms can cheer up the people inside

A.萝莉粉

B.银灰

C.炫丽红

D.黑色

A.颜色本身

B.色调

C.亮度

D.饱和度

若X与Z的颜色相同，则下面哪一项是必定正确的?

A．只与y的颜色相同。

B．s与x的颜色相同。

C．X与y的颜色相同。

D．w与其他所有国家的颜色不同。

若X与Z的颜色相同，则下面哪一项是必定正确的?

A．只与y的颜色相同。

B．s与x的颜色相同。

C．X与y的颜色相同。

D．w与其他所有国家的颜色不同。

若X与Z的颜色相同，则下面哪一项是必定正确的?( )

A．R与Y的颜色相同。

B．S与X的颜色相同。

C．X与Y的颜色相同。

D．W与其他所有县的颜色不同。

若X与Z的颜色相同，则下面哪一项是必定正确的?

A．R与Y的颜色相同。

B．S与X的颜色相同。

C．X与Y的颜色相同。

D．W与其他所有国家的颜色不同。

长期放置的Na₂S或(NH₄)₂S，颜色会变浑，原因是______。

A、蓝色变无色

B、蓝色出现

C、无色变蓝色

D、无现象

假如X和Z颜色相同，那么下列哪一项必然正确?

A．R和Y颜色相同。

B．S和X颜色相同。

C．X和Y颜色相同。

D．W和其他任何国家的颜色都不相同。