问题 问答题 简答题

甲醇沸程试验安装装置时,主温度计的安放要求是什么?

答案

参考答案:主温度计的水银中间泡顶端最细的部分与蒸馏瓶支管相切.

材料题

阅读下列材料,回答有关问题。

       卫鞅曰:“治世不一道,便国不法古。故汤武不循古而王,夏殷不易礼而亡。反古者不可非,而循礼者不足多。”孝公曰:“善。”以卫鞅为左庶长,卒定变法令。                       ——摘自《史记》 

请回答: 

①文中的“卫鞅”指的是谁?

                                                                                                                                                            

②文中反映了卫鞅的什么主张?

                                                                                                                                                            

③ 卫鞅的文论代表哪个阶级?    

                                                                                                                                                            

④卫鞅有何重大作为?结果怎样?

                                                                                                                                                            

                                                                                                                                                            

                                                                                                                                                             

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