【单选题】在非通行的流速未超过1m/s小河中，同回路单芯电缆相互间距不应小于0.5m而不同回路电缆间距不小于（）。

【简答题】One day Tom was played with his 21 younger brother beside the well nearly 22 their home. Immediately Tom fell down 23 the well. Paul was frighten. Their 24 parents was not at home....

【单选题】卖家小河销售了一张床，商家提供送货上门并安装的服务，在1月8日完成送货安装，第二天，买家反馈商品甲醛超标异味严重，申请了退货退款，商家表示异味因人而异并且无法核实，拒绝了买家的退款申请。请问以上情况正确的处理方式是?()

【简答题】One day Tom was played with his 21 younger brother beside the well nearly 22 their home. Immediately Tom fell down 23 the well. Paul was frighten. Their 24 parents was not at home....

【简答题】溪,小河

【单选题】白*:小河:垂*

【简答题】（1）以L为对称轴画出A点的对称点A’，连结A'C使A'C和直线L相交于为O点，连结AO量出“AO+OC”的距离和为（ ）。 （2）在L上任取一点B，连结AB、BC，量出“AB+BC”距离和为（）。比较AO+OC与AB+BC距离和，（ ）距离和比较短。在L再任取几点试试，算出距离和与AO、OC距离和比较，你发现了：（）。 （3）A、C两个村子，L是一条小河，现在要在小河边修一个供水站，向AC两村供...

【单选题】诗歌《小河》的作者是（）。

【简答题】Dear Hilda, I"ve just heard of my mother has suddenly been 11 ill, and I"d like to go and see what she is. The 12 trouble is that I can take Tom with me then. 13 Do you think if you wo...

【简答题】After a busy day, President Lincoln and wife 1 went to Ford"s Theatre in Washington DC, 2 which a new play would be put on. Near the 3 theatre living a 25-year-old unsuccessful actor ...