判断题

【判断题】非功能需求是从各个角度对系统的约束和限制，反映了应用对软件系统质量和特性的额外要求。

答案：正确

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人体在吸收乙醇后，能依赖乙醇脱氢酶将其转化为二氧化碳和水，释放能量，因此它是一种产能营养素。

答案：错误

单项选择题

【单选题】At least 100 million people are ; 600 million people live under the conditions which are threatening ___________.

A、loneliness; their working or sleeping
B、loneliness; their health or lives
C、homeless; their working or sleeping
D、homeless; their health or lives