填空题

Married men and women tend to have a happier life than single, divorced or widowed people of the same age.

【参考答案】

NG

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填空题

The subjects who lived an isolated life had death rates five or six times higher than people with families and friends.

问答题

1. 家用电脑的普及。2．家用电脑的好处。3．家用电脑带来的问题。