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【判断题】
淬火后的钢回火温度越高,回火后的硬度和强度也越高。A.
正确
B.
错误
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举一反三
【单选题】听力原文：F: Tom, do you think that it is right for us to group people by age? I mean we put our three-year-olds together in day-care centers, our 13-year-olds in schools and sports activities, and our 80-...
A.
Put our three-year-olds together in day-care centers.
B.
Put our 13-year-olds in schools and sports activities.
C.
Put our 80-year-olds in senior-citizen homes.
D.
Mix people of all ages together.
【单选题】听力原文：F: Tom, do you think that it is right for us to group people by age? I mean we put our three-year-olds together in day-care centers, our 13-year-olds in schools and sports activities, and our 80-...
A.
Put our three-year-olds together in day-care centers.
B.
Put our 13-year-olds in schools and sports activities.
C.
Put our 80-year-olds in senior-citizen homes.
D.
Mix people of all ages together.
【简答题】简答题 1 、 简述影响市场需求的因素 _____________ 2 、 简述在线问卷调查法的特点 _____________ 3 、 常用地定性分析方法有哪些? _____________
【简答题】简述影响需求的因素。
【简答题】Do you think that it is necessary to draw a distinction between acquisition and learning? Why or why not?
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