单项选择题

In bungee jumping, you ______.

A．jump as high as you can
B．slide down a rope to the ground
C．attach yourself to a rope and fall to the ground
D．fall towards the ground without a rope

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热门试题

单项选择题

People probably take part in dangerous sports nowadays because ______.

A．they have a lot of free time
B．they can go to hospital if they are injured
C．their lives lack excitement
D．they no longer need to hunt for food

单项选择题

Why is all life in danger Because ______ break up the food chains.

A．Human beings
B．animals
C．plants and animals
D．man and wild animals