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【简答题】
Robert Edwards was blinded in a traffic accident. He was also a little deaf 1 old age. Last week, he was taking a walk near his home when a thunderstorm came. He hid 2 the storm under a big tree and was struck by lightning. He was knocked 3 the ground and woke up some 20 minutes 4 , lying face down in water below a tree. He went into the house and lay down in bed. A short time later, he awoke; his legs felt 5 and he was trembling, but, when he opened his eyes, he could see the clock across the room fading in and out in front of him. When his wife entered, he 6 her for the first time in nine years. Doctors 7 that he had regained his sight and hearing obviously from the flash of lightning, but they were unable to explain that. The only 8 explanation offered by one doctor was that, 9 Edwards lost his sight as a result of trauma in a terrible accident, perhaps the only way it could be restored was by 10 trauma.
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【单选题】单位时间移动的距离是( ) 。
A.
速度
B.
加速度
C.
减速度
D.
梯度
【判断题】位移速度是指在单位时间内人体移动的距离。()
A.
正确
B.
错误
【简答题】阅读理解。 A Scotsman and an Englishman lived next door to each other. The Scotsman owned a hen and each morning he would look in his garden and pick up his hen’s egg for breakfast. One morning he looked i...
【单选题】The Scotsman employed by Edison( )
A.
designed a system to use the technology Edison had invented.
B.
used a available technology to make a new system,
C.
was already an expert in motion picture technology.
【简答题】When Scotsman Alexander Graham Bell invented the telephone in 1876, it was a revolution in communication.Over the last two decades a new means of spoken communication has emerged: the mobile phone. Th...
【单选题】流量是指单位时间内通过某一断面的水量,常用单位为m 3 /s。流速是指河流中水质点在单位时间内移动的距离。流量和流速是影响河流侵蚀、搬运和沉积作用的重要因素。该图为某河段示意图,箭头表示河流流向。 图中流水侵蚀作用最活跃的是
A.
B.
C.
D.
【简答题】阅读理解。 A Scotsman and an Englishman lived next door to each other. The Scotsman owned a hen and each morning he would look in his garden and pick up his hen's egg for breakfast. One morning he looked i...
【判断题】运动强度是决定运动量最主要的因素,是指单位时间移动的距离和速度,或肌肉单位时间内做的功,主要的指标有心率、最大摄氧量以及肌肉做功等。
A.
正确
B.
错误
【单选题】运动强度指的是单位时间内移动的距离或速度,或( )在单位时间内所做的功。
A.
人体
B.
肌肉
C.
上肢
D.
下肢
【判断题】运动强度是指单位时间移动的距离或速度,或肌肉单位时间所做的功。
A.
正确
B.
错误
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