1 . There's a loud bang, and then it starts: A battery of an electric car is on fire in the test tunnel. A video of the test impressively shows the energy stored in such batteries: meter-long flames flee in disorder and produce enormous amounts of thick, black smoke. The visibility in the previously brightly lit tunnel section quickly approaches zero. After a few minutes, ashes have spread throughout the room.
"In our experiment we were considering in particular private and public operators of small and large underground or multi-storey car parks," says project leader Lars Derek Mellert,"all these existing underground structures are being used to an increasing extent by electric cars. And the operators ask themselves: “
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A.The pollutants emitted by a burning vehicle have always been dangerous |
B.What on earth causes Lithium batteries to catch fire |
C.Even the fire brigades do not have to learn anything new on the basis of the tests |
D.The acid can possibly result in death, while its effects may delay after exposure |
E.But in the three tests in the tunnel the concentrations remained far below critical levels |
F.What will happen if such a car catches fire |
A. extended B. married C. estimate D. keeping E. experiment F. noticed G. glued H. initially I. replaced J. sense K. vastly |
In South Korea, smartphone cases come with rings tied on the back of the mobile phones to prevent clumsy owners from dropping them. This makes people look like they literally are
Walk around the streets of Seoul or any other South Korean city, and there is a real risk of bumping into people whose eyes are
The government
Instead of appealing to people’s good
A.It happened in the southern part of India. | B.It killed more than 500 people in Bombay. |
C.It caused a landslide near the railway. | D.It wasn’t linked to local armed conflicts. |
A.Two trains hitting each other head-on. | B.The misfunctioning signalling system. |
C.A cow staying on the railway line. | D.A coach going through the crossing. |
A.Reporting an accident to the newspaper. | B.Detailing the injuries in an accident. |
C.Finding out the cause of a train crash. | D.Requiring financial support from the office. |