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large roomsshows the different ______ of genders.
38、 High densitymay reduce helping behaviour due to the ______.
39、 People feelless crowding if they can ______ more over the situation.
40、 The mosteffective way to reduce the effect of high density on human beings is ______.
参考答案：
V
I
III
VII
IX
II
IV
resourcelimitations
socialdensity
privacy
personalspace requirements
diffusionof responsibility
control
socialwithdrawal
答案仅供参考
Passage 2：
题材：动物
题型：选择+填空
题号：旧题
参考文章：
Ants could Teach Ants
The ants are tiny and usually nest betweenrocks in the south coast of England. Transformed into research subjects at theUniversity of Bristol, they raced along a tabletop foraging for food -- andthen, remarkably, returned to guide others. Time and again, followers trailed
