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骨盆重锤牵引法:患者仰卧屈髋屈膝，重量从每侧5kg开始。()

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8%的高碳钢与低碳钢相比，可锻性较差。在选择终锻温度时，高碳钢的终锻温度却低于低碳钢的终锻温度;其主要原因是为了()。

A. 使高碳钢晶粒细化提高强度
B. 使高碳钢获得优良的表面质量
C. 打碎高碳钢内部的网状碳化物

What you need to do is to keep things short and sweet, just the ______.
A: questions
B; topics
C; highlights

运用盈利指数法分析投资项目的判定原则是盈利指数应大于()。

AT&T found that employees with better planning and decision-making skills were ______ to be promoted into management jobs.
A: more likely
B; more like
C; more unlikely