故选E.(5)D 根据上下文语境Without it, many questions about an accident could never be answered. As a result, plane makers can make changes so the problem will not happen again.可知,有了黑匣子,人们就可以知道哪里出现了问题,从而做出改变,让这个问题不再发生。由此可知。故选D. 反馈 收藏 ...
Empty tanks to blame for many plane crashes: ; Federal official says it is surprising how many pilots take risk of flying on low fuelMELANIE S. WELTE
It's almost like the universe is a giant pool table without any rail cushions. A space collision is just what it sounds like -- one body, whether it's a star, an asteroid or a comet, crashes into another body. The results are often spectacular displays of energy and matter, although ...
New riders often fear using the front brake, but it should be applied every time a motorcycle is slowed or stopped. Many accidents are caused by riders braking incorrectly. According to the California Highway patrol, locking up the rear brakes is a factor in the majority of motorcycle crashes...
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WASHINGTON, May 23 (Xinhua) -- American researchers have suggested a computationally efficient algorithm to decide how many taxis a city might actually need in an era of shared mobility services. Using the new algorithm, they found the fleet size of cab-hailing service in New York could be cu...
7 of the Most Devastating US Plane Crashes Although not the deadliest, these flight disasters are among the most unforgettable in American history. Read more 5 Stunning Real-Life Survival Stories These people went off the beaten track. Then things went horribly wrong. Read more Survivors Set Off...
If a plane crashes into the water, the beacon sends out an ultrasonic pulse that cannot be heard by human ears but is readily detectable by sonar and acoustical locating equipment. There is a submergence sensor on the side of the beacon that looks like a bull's-eye. When water touches th...
The airport in nearby Baltimore, Md., is cheaper, though it requires a train ride or a drive to get into D.C. Budget airlines bank on the fact that many passengers are willing to take the extra train ride if it means saving hundreds of dollars on their plane fare. Next, we'll see...
The airport in nearby Baltimore, Md., is cheaper, though it requires a train ride or a drive to get into D.C. Budget airlines bank on the fact that many passengers are willing to take the extra train ride if it means saving hundreds of dollars on their plane fare. Next, we'll see...