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【单选题】
麦克斯韦关于电磁场理论的基本假设是( )。A.
相对于观察者静止的电荷产生电场
B.
恒定电流产生磁场，变化的磁场产生涡旋电场
C.
变化的磁场产生涡旋电场，变化的电场产生变化磁场
D.
相对于观察者静止的电荷产生电场，恒定电流产生稳恒定磁场
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举一反三
【单选题】We don’t only perceive the things. What else do we also perceive?
A.
time
B.
space
C.
direction
D.
all of the above
【判断题】We perceive the world with our five physical senses, which are smell, taste, sight, touch and sound.
A.
正确
B.
错误
【单选题】以下诗句不属于屈原的创作是
A.
朝饮木兰之坠露兮，夕餐秋菊之落英
B.
袅袅兮秋风，洞庭波兮木叶下
C.
若有人兮山之阿，被薜荔兮带女萝
D.
悲哉！秋之为气也。萧瑟兮，草木摇落而变衰
【单选题】We rarely perceive more than a minute ______ of the sights and sounds that fall upon our sense organs the great majority pass us by.
A.
fiction
B.
function
C.
fraction
D.
friction
【单选题】We perceive the world using all our senses, but we digest most digital data through tiny two-dimensional screens on mobile devices.
A.
break down food
B.
understand or assimilate
C.
arrange and integrate in the mind
D.
put up with something unpleasant
【简答题】One of the problems with living in an "always on" society is we perceive the need to ________.
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