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
23
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] (8)
选项
A、used
B、served
C、made
D、showed
答案
C
解析
固定搭配题。be made visible是个固定搭配,表示“使……能看见”,所以正确答案为[C]。
转载请注明原文地址:https://tihaiku.com/zcyy/3788997.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
American’sLeisureActivitiesLeisureactivities【T1】______.Bothmenand
Whyisitsodifficulttofallasleepwhenyouareovertired?Thereisnoon
[originaltext]W:So,haveyougotthebloodsamplesowecoulddoourgeneticr
资本投入的审计目标中,证实投入资本的真实性是指:A、确认记录在资本账户的余额确实
施女士,65岁,退休干部,平日缺乏体育锻炼,口味偏咸,身高163cm,体重78k
下图是30年来某湖泊(由上湖和下湖构成)湿地变化及相关因素统计图。 20世
以下治疗耳鸣的处方中,属于同名经配穴的是A.中渚、侠溪 B.听宫、中渚 C.
受理申请医师注册的卫生行政部门对不符合条件不予注册的,应当自收到申请之日起多少日
关于再生障碍性贫血发病机制的叙述,错误的是A.造血干细胞受损B.造血微环境缺陷C
最适宜于治疗阵发性室上性心动过速的药物是A:胺碘酮 B:维拉帕米 C:司可巴
最新回复
(
0
)