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题目：
单选题
A选择合适目标并掌握约束条件
B定性分析与定量分析相结合，以定量分析为主
C静态分析与动态分析相结合，以动态分析为主
D多方案比较与优化
答案：
<查看本题扣1积分>
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下列关于劳动合同的说法中，正确的有（）。
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综采工作面刮板输送机双速电动机是用改变电极的极对数改变转速的。（）
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理想气体物理状态三个参数压力P、比容V、和温度T中假定比容不变，P和T关系是（）
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纠正休克所并发的酸中毒关键在于（）。
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（）的硫化起点缓慢，焦烧时间长，但硫化温度下硫化活性大，硫化速度快。典型的是次磺酰胺类促进剂，它也是当前发展速度最快的促进剂。
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When I was 13 my only purpose was to become the star on our football team. That meant Miller King, who was the best at our school.Football season started in September and all summer long I worked out. I carried my football everywhere for .Just before September, Miller was struck by a car and lost his right arm. I went to see him after he came back from . He looked very , but he didn’t cry.That season, I all of Miller’s records while he the home games from the bench. We went 10-1 and I was named most valuable player, I often had crazy dreams in which I was to blame for Miller’s .One afternoon, I was crossing the field to go home and saw Miller going over a fence—which wasn’t to climb if you had both arms. I’m sure I was the last person in the world he wanted to accept from. But even that challenge he accepted. I him move slowly over the fence. When we were finally on the other side, he said to me, “You know, I didn’t tell you this during the season, but you did .Thank you for filling in for .” His words freed me from my bad . I thought to myself, how even without an arm he was more of a leader. Damaged but not defeated, he was ahead of me. I was right to have him. From that day on，I grew and a little more real.
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（）大曲酒的主题香味成分是己酸乙酯；它是己酸菌在发酵中的主要代谢产物。
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我国规定，一般自动扶梯的倾角不超过（）。
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非精密进近，如有进近灯，规定的目视参考可以为横排灯或入口灯以及（）