D) the video was not enjoyable at all
25.Dr. Bruce McEwen of Rockefeller University believes that______.
A) a person s memory is determined by the level of hormones in his body
B) a person s memory improves with continued experience of stress.
C) stress hormones have lasting positive effects on the brain
D) short bursts of stress hormones enhance
答案与解析:
D D A B C
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