问题
选择题
It is widely accepted that animals learn to do things because their certain acts lead to _______.
A．rewards
B．prize
C．awards
D．results
答案
答案：A
本题考查名词。reward为“奖赏”之意。句意：动物学做事情是因为他们一定的行为导致奖赏，已经被广泛的承认。
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