题目内容

敏感栅越窄,基长越长,横向效应越大。

A. 对
B. 错

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According to the video, how much of the world’s food is wasted each year?

A. a half
B. a third
C. a quarter

What are "leftovers"?

A. remains of food or a meal, which have not been eaten
B. a thing that is completely without value
C. lost stuff

What is the other way to say "dump"?

A. leftover
B. landfill
C. a waste of space

Do have anything_____abundance?

A. on
B. at
C. in

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