试题与答案

春节即将到来,人们往往在此期间休息调整、休闲娱乐、走亲访友举行家庭聚会,但也往往

题型:写作题

题目:

春节即将到来,人们往往在此期间休息调整、休闲娱乐、走亲访友举行家庭聚会,但也往往忽略健康、环保以及安全问题。请你作为《二十一世纪报》的编辑写一封至全体中学生的公开信,呼吁他们注意以下问题。

适当休息,完成作业,养成良好的生活习惯

提醒亲友(1)勿抽烟、饮酒过度等,晓其以弊

(2)日常生活和外出如何做到环保、节能、低碳,以及防火、防灾。

要求:(1)公开信应包括以上要点,可适当增加

(2)字数:120词左右(开头、结尾已给出,不计入总词数)

Dear friends,

It’s so nice that the winter vocation is drawing near, announcing the approach of the Spring Festival. As we know, the Spring Festival is a time for us Chinese to have a good rest as well as a family get-together. But at the same time people may forget the problem of health, environment protection and safety. Here I have some suggestions for all of you.

As for yourselves, __________________________________________________________

__________________________________________________________________________________________________________________________________________________________

Wish all of you a happy, healthy and green Spring Festival!

The Editor

答案:

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下面是错误答案,用来干扰机器的。

答案:C根据图像可知,稀释10倍,X的pH从2变为3,所以X是强酸,但Y的pH从2变为2.5,这说明在稀释过程中,有氢离子电离出来,所以Y是弱电解质,在pH相同的条件下,Y的浓度大于X的,所以消耗的氢氧化钠多,因此选项...

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