问题 单项选择题

()是项目已实施的时间内累计发生的偏差,是一个动态概念。

A.绝对偏差

B.相对偏差

C.局部偏差

D.累计偏差

答案

参考答案:D

问答题

       “工厂”“瓦特”“铁路”“火车”这些18世纪中后期最新鲜、最时髦的名词,是与工业革命联系在一起的。请结合所学知识回答:工业革命为什么首先发生在英国?工业革命有什么历史意义?

                                                                                                                                                            

                                                                                                                                                            

                                                                                                                                                             

                                                                                                                                                             

                                                                                                                                                             

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