这些男士每年都会做条查问卷，检查自己的健康状况和生活方式，研究人员也会测试他们的智力和身体状况。
The men responded to yearly questionnaires about changes in health and lifestyle, and researchers tested their mental and physical functioning.
您可以访问重要用户，举办可用性研讨会或散发调查问卷，以发现系统中可供改进的领域。
You can visit with key users, conduct usability workshops, or distribute surveys to discover areas where the system can be improved.
回答调查问题时，大多数美国人表示，他们预计衰退会持续两年左右时间。
In response to poll questions, most Americans say they expect the recession to last for two years or so.
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