填空题

The author doubts that people can really accept the notion that space within dwellings may be reduced even further.

【参考答案】

Y

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填空题

According to the author, we are a species whose behavior improves in overcrowded conditions.

问答题

中国电子货币使用的现状；2．使用电子货币的好处；3．怎样能实现更好地使用电子货币。Electronic Money