As one works with color in a practical, or experimental way, one is impressed by two apparently unrelated facts. Color as seen is a mobile, changeable thing (1) to a large extent on the relationship of the color (2) other colors (3) simultaneously. It is not (4) in its relation to the direct stimulus which (5) it. On the other hand, the properties of surfaces that give (6) to color do not seem to change greatly under a wide variety of illumination color, usually (but not always) looking much the same in artificial light as in daylight. Both of these effects seem to be (7) in large part to the mechanism of color (8) .

When the eye is (9) to a colored area, there is an immediate readjustment of the (10) of the eye to color in and around the area (11) . This readjustment does not promptly affect the color seen but usually does affect the next area to which the (12) is shifted. The longer the time of viewing, the higher the (13) , and the larger the area, the greater the effect will be (14) its persistence in the (15) viewing situation. As indicated by the work of Wright and Schouten, it appears that, at (16) for a first approximation, full adaptation takes place over (17) time if the adapting source is moderately bright and the eye has been in (18) darkness just previously. Also, (19) of the persistence of the effect if the eye is shifted around from one object to another, all of which are at similar brightness or have similar colors, the adaptation will tend to become (20) over the whole eye.

4（）

A.fixed

B.firm

C.bound

D.open

关于建设档案管理的说法，不正确的有（）。

A.施工单位应当在工程竣工验收后3个月内，向城建档案馆报送一套符合规定的建设工程档案

B.缓建的工程档案应当暂由施工单位保管

C.撤销单位的工程建设档案，应当向上级主管机关或者城建档案馆移交

D.凡结构和平面布置等改变的，应当重新编制建设工程档案，并在工程竣工后3个月内向城建档案馆报送

E.城市地下管线普查和补测补绘形成的地下管线档案应当在普查、测绘结束后1个月内接收进馆