首页
登录
职称英语
Which of the following statements is TRUE according to the passage? [br] [origi
Which of the following statements is TRUE according to the passage? [br] [origi
游客
2024-10-29
34
管理
问题
Which of the following statements is TRUE according to the passage? [br]
Under proper conditions, sound waves will be reflected from a hillside or other such obstruction. Sound travels at the speed of about one-fifth of a mile per second. If the hill is eleven hundred feet away, it takes two seconds for the sound to travel to the hill and back. Thus by measuring the time between a sound and its reflection-the echo, you can calculate the distance to an obstruction.
During World War II the British made a practical use of this rule to discover planes on their way to bomb London long before the enemy was near the object. They used radio waves instead of sound waves, since radio waves can pass through fog and clouds. The outnumbered Royal Air Force (RAF) always seemed to puzzle Germans that they were lying in wait at the right time and were never surprised. It was radio echoes more than anything else that helped them win the war.
Since the radio waves were used to tell the direction in which to send the RAF planes and the distance to send them, the device was called radio directing and ranging, and from the first letters the word radar was formed.
选项
A、uniformity
B、formality
C、informality
D、individuality
答案
D
解析
本题测试对重要信息的理解和归纳推理能力。根据文中的相关内容,特别是关键信息,如“It is no longer necessary to dress like everyone else”,“you need never feel depressed if you don’t look like the latest fashion photo”,“no one else does either”等,我们可知当今的社会自由度更大,它不再要求我们都穿着一样,即便不像流行的
转载请注明原文地址:https://tihaiku.com/zcyy/3822701.html
相关试题推荐
BobandMaryorderedallthefollowingEXCEPT_________.[br][originaltext]Bob
BobandMaryorderedallthefollowingEXCEPT_________.[originaltext]Bob:Well
WhichofthefollowingstatementsisTRUEaccordingtothepassage?[br][origi
Accordingtothenews,icefromGreenlandgivesinformationabout______.[br]
Accordingtothenews,icefromGreenlandgivesinformationabout______.[br]
Accordingtothenews,icefromGreenlandgivesinformationabout______.[origi
WriteonANSWERSHEETTWOanoteofabout50-60wordsbasedonthefollowing
Accordingtoasurvey,whomayhaveabetterchancetobemillionaires?[br][o
WhichofthefollowingisNOTsuggestedinthepassage?[br][originaltext]
WhichofthefollowingisNOTsuggestedinthepassage?[originaltext]NoEn
随机试题
[originaltext]M:Thisishopeless.Thesefiguresstilldon’taddupright.Let’
[originaltext]Lastnight,eightmillionpeoplein16U.S.stateswereunder
环节一:课堂导入 温故知新导入。 导入实录:上节课,我们已经学习完了关于联系的含义及联系的普遍性基本特征的相关知识。下面我们一起来回忆一下:联系是指事物之间
I类飞机库飞机停放和维修区屋顶金属承重构件无防火保护措施,飞机机翼面积为300㎡
通过兴奋中枢化学感受器增强肺通气的有效刺激是A. B. C. D. E.
下述制剂中不属于速释制剂的有A.舌下片 B.经皮吸收制剂 C.鼻黏膜给药
患者,女性,73岁。右肺下叶腺鳞癌术后,明日拟出院。护士嘱咐患者必须尽快返院就诊
(2018年真题)根据《民法总则》《继承法》,下列遗嘱中,应认定有效的是(
人在每一瞬间,将心理活动选择了某些对象而忽略了另一些对象。这一特点指的是注意的(
对油耗影响较大的驾驶操作环节包括()。A.起动升温 B.起步加速 C.换挡变
最新回复
(
0
)