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当k'小于0，社会的生产规模会发生什么变化？（）
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My grandmother is 94 now. Her ability to see, hear and walk has weakened, and it becomes apparent that Grandma can no longer take care of herself,so 1)were held to discuss what to do. No one wanted to live with her; that was evident. We talked about sending her to a 2)but that idea was quickly rejected. Although Grandma would be with more people of her own age, she would see less of her family-and that would 3)Besides, the really good homes are 4)and the inexpensive ones are not so good. Mother flatly stated that Grandma would not 5) in nursing home. I admired my mother greatly for this decision.[音频]
Listen to the video "Workaholism", and fill in the blanks.If a person is a workaholic, he’s got ______1_______to be driven to ____2_____things. In the workdays, they just keep going, keep ____3______themselves. And a lot of stress leads to many problems, ______4______and diseases.If you are not able to ____5______work, and the work _____6______you, you may be a workaholic and you may need to seek some outside _______7______. You’d be able to _____8_______in your career world and to deal with other issues. Not let workaholism steal the joy of living.
教师面试试讲时尽量不要书写板书，要专注于课本内容的讲授。
20世纪50年代中期，日本熊本县水俣湾被石油化工厂废水污染，并通过水-鱼-人食物链在人体内蓄积，引起居民中大量出现以感觉障碍、共济运动失调、视野缩小、听力障碍、语言障碍、眼球运动异常为主要症状和体征的疾病，该病可能由何污染物引起（ ）
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