题目

It is reported that the _________ between Israel and Palestine has caused hundreds of people to lose their lives in the last 3 years. A. contact                    B. conflict                    C. contest                            D. control 答案：B化学小实验是我们进一步认识物质及其变化的重要方式．（1）图1中将10ml红墨水与10ml酒精混合，所得体积小于20ml．其微观原因：______；（2）图2生成炭黑的实验说明石蜡中一定含有______元素；（3）图3中1、3孔的现象是______，该实验目的是探究______．