首页
登录
职称英语
The nature of light is not wholly known, but it is generally believed to be
The nature of light is not wholly known, but it is generally believed to be
游客
2024-10-06
19
管理
问题
The nature of light is not wholly known, but it is generally believed to be matter, as in its(1)______, it obeys the laws(2)______matter. So closely is it connected with heat and electricity that there can be (3)______ doubt of their all being(4)______ different modifications of the same substance. The effects of light(5)______ other bodies and how light is affected by them(6)______ some important principles.
Rays of light are reflected from one surface to(7)______. It is by this reflection of light that objects are(8)______ visible. However, unless light falls directly(9) ______the eye they are invisible, and are not(10)______felt until after a certain series of operations upon the various coverings of the eye. Smooth and(11)______surfaces reflect light most powerfully, and send to the eye the images of the objects (12)______ the light proceeded before reflection. Glass would be of no use to us as a mirror, were it not first(13)______on one side, interrupting the rays in their(14)______from the glass into the air. The reason why trees, rocks and animals are not all mirrors is that their surfaces are(15)______, and rays of light reflected from such a surface are(16)______in every direction. Stand before a mirror and your image is formed and appears to be as far(17)______the glass as you are before it. Rays of light(18) ______reflected at the same(19) ______at which they fall upon a mirror, two persons can stand in (20)______ position that each can see the image of the other without seeing his own. [br] (19)
选项
A、way
B、angle
C、point
D、form
答案
B
解析
名词辨析题。根据常识和上下文可以判断,空格中填入的词应表示“角度”。在四个选项中只有[B]angle表示“角度”,故为正确答案。
转载请注明原文地址:https://tihaiku.com/zcyy/3789008.html
相关试题推荐
Thenatureoflightisnotwhollyknown,butitisgenerallybelievedtobe
Thenatureoflightisnotwhollyknown,butitisgenerallybelievedtobe
Thenatureoflightisnotwhollyknown,butitisgenerallybelievedtobe
Thenatureoflightisnotwhollyknown,butitisgenerallybelievedtobe
Thenatureoflightisnotwhollyknown,butitisgenerallybelievedtobe
Thenatureoflightisnotwhollyknown,butitisgenerallybelievedtobe
Thenatureoflightisnotwhollyknown,butitisgenerallybelievedtobe
Thenatureoflightisnotwhollyknown,butitisgenerallybelievedtobe
Thenatureoflightisnotwhollyknown,butitisgenerallybelievedtobe
Thenatureoflightisnotwhollyknown,butitisgenerallybelievedtobe
随机试题
Ifyoulookatthematteranalytically,youidentifytwopartsoftheproble
[originaltext] ArareJanuaryhurricanehasformedfaroutintheAtlantic,th
SleepyStudentsPerformWorseAStayingupanhouror
外阴鳞状上皮增生的症状不包括A、外阴瘙痒剧烈 B、皮肤黯红 C、坐卧不安
常言道:“小成功需要朋友,大成功需要敌人。”一个人若要有所作为,就必须敢于同对手
能促进各脂蛋白之间脂质交换和转运的酶是A.CETP B.HMGCoA还原酶
IgG的Fc段是A、抗体与抗原结合的部位B、具有抗体活性的部位C、各类Ig的
()属于内部收益率(IRR)的特别形式。A:数据加权的收益率 B:货币加权的收
宏观经济政策目标包括:A、经济增长 B、物价稳定 C、充分就业 D、国际收
营造组织的培训与开发文化的措施
最新回复
(
0
)