根据你的生活经验，判断下列做法中正确的是_刷题宝

题干

根据你的生活经验，判断下列做法中正确的是（）

A：根据肥皂洗涤衣物产生泡沫的情况，可以粗略判断是硬水还是软水

B：用泡沫灭火器扑灭图书．档案的失火

C：厨房煤气泄漏，迅速开启排气扇

D：山林着火时，要向着顺风方向奔跑，尽快离开火灾区

上一题下一题 0.0难度选择题更新时间:2019-07-14 07:08:37

答案(点此获取答案解析）

A

同类题1

配对阅读。请为每个人选择最适合阅读的书，并将答案的字母编号填写在括号内。

____ Kate wants to keep thinner and healthier.
____ Tom is collecting information about how to prevent electrical fire.
____ Betty is trying to advise her mother to do some sports.
____ Sophia has to know some ways to prevent common cold.
____ Jane is studying health insurance(保险).

A．This book will help you understand how to stay well and avoid disease. You’ll learn some things that you might use at home to be away from cold.

B．Do you want to know how much food you should eat every day? Do you want to make a good plan about your meals? If so, please read this book. From the book, you will know about safe ways to lose weight and how many calories you need each day.

C．Do you have difficulties to communicate with others? Do you often say something wrong when you talk to others? This book will teach you how to say proper things to different people in different places.

D．This book will tell you something about how to keep healthy by taking exercise, but also the ways of taking exercise.

E. Are you worried parents? Do you have trouble in teaching your children? This book is written by a famous psychologist. It can help you understand your children well and make friends with them.
F. You will know why people need health insurance by reading this book. You can also know how to choose health insurance and how to use insurance to pay for your health in this book.
G. You will get useful information about how to prevent common accidents from this book. It’s about safety both indoors and outdoors.

同类题2

在学过摩擦力知识后，小明想探究:摩擦力大小是否与压力、重力都有关系?他利用如图所示的装置进行探究.实验步骤如下:

①金属盒放在质量不计的白纸上，读出台式测力计示数;拉动白纸的过程中，读出弹簧测力计的示数.

②将质量不计的氢气球系在金属盒上，读出台式测力计示数;拉动白纸的过程中，读出弹簧测力计的示数.

③再往金属盒注入适量的沙子，使台式测力计示数与步骤①中的示数相等，拉动白纸的过程中，读出弹簧测力计的示数.实验相关数据如表:

实验序号	台式测力计示数F₁ /N	金属盒总重力G/N	弹簧测力计示数F₂/N
①	4.8	4.8	1 .8
②	3.2		1 .2
③	4.8	6.4	1.8

同类题3

我们伟大民族精神的核心是（）

同类题4

早期人类文明成果灿烂，交流艰难。阅读材料，回答问题。

同类题5

在北极点上，四周都是( )。

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