岩土的工程分类的第五类是次坚石。

阅读理解.

     What is color? Why do some of the things around us look red, some green, others blue?

     Colors are really made by reflected light (反射光线). We see colors because most of the things

reflect light. Something is red, because it reflects most of the red light. In the same way, if something

is green it reflects most of the green light. If something reflects all light, it is white.

     Some of the light is reflected and some is taken in (吸收) and turned into heat. The darker the

color is, the less light is reflected and the more light is taken in. So dark-colored (深色的) clothes

are warmer in the sun than light-colored (浅色的) clothes.

1. When something reflects light, we can _____.

A. see its color

B. see its heat

C. not see its color

D. see nothing

2. Something looks white because it reflects _____.

A. some light

B. no light

C. all light

D. less light

3. The dark-colored clothes are warm because _____ is taken in.

A. more light

B. less light

C. more color

D. less color

4. In summer _____ clothes make people feel cool.

A. dark-colored

B. red-colored

C. green-colored

D. light-colored

5. Which is the best title (题目) of this passage?

A. Dark Color

B. Color

C. Heat

D. Clothes

. When cutting the cloth for my suit, leave enough at the edges to   my getting fatter.

A．supply of

B．provide for

C．provide against

D．provide with

试述肠梗阻的全身性病理生理改变。

哪种情形无需注销执业医师注册（）

A.医师被宣告失踪

B.医师死亡

C.医师负有民事责任

D.医师受吊销医师执业证书的行政处罚

E.医师中止执业活动满2年

有一建筑物，价格为2000元/m²，其所在土地地价1000元/m²，建筑物的折旧率为10%，土地及建筑物还原率分别为5%和6%，则综合还原率为( )。

A．2%
B．3%
C．4%
D．5%