遵义市某中学为了搞好“创建全国文明城市”的宣传活动，对本校部分学生（随机抽查）进行了一次相关知识了解程度的调查测试（成绩分为A、B、C、D、E五个组，x表示测试成绩）．通过对测试成绩的分析，得到如图所示的两幅不完整的统计图．请你根据图中提供的信息解答以下问题：

古诗文名句默写。

美国学者德里克认为，1927年统一战线内部因党际与党内的分野而爆发了革命策略冲突。这一冲突首先表现为(　　)

如图是模拟海水制盐的流程：

（1）操作X的名称是____ ；

（2）实验①加入过量Ca（OH）₂溶液的目的是____ ；

（3）写出实验②发生的其中一个反应____ ；

（4）写出实验④发生的中和反应　____ ；

（5）粗盐水中氯化钠的质量____ 粗盐水中氯化钠的质量．（填＞、=、＜）

    My feelings about science have ____(complete) changed. More than one science teachers at my new school____ excellent and____(friend). The science____(facility) are very good with laboratories that have all the____(late) equipment. Our chemistry teacher takes us to public science lectures about four times____ term，____are always interesting, because the lecturers are famous at their area of science. In the last 20 years, seven Canadian scientists____(win) the Nobel Prize. Now____I'm becoming more and more interested in is physics and I want to study it at university. But my parents are____(astonish), as they always thought I would become an English teacher.