The new invention can purify water quickly. What is it called? A. Water purifier device B. Quick water purifier C. Fast water cleaner D. Smart water purifier 相关知识点: 试题来源: 解析 B。本题考查科技发明的名称。Quick water purifier(快速净水器)可以快速净化水。Water purifier device(净水器...
A. Narrative. B. Argumentative. C. Expository. D. Descriptive. 相关知识点: 试题来源: 解析 C。本题考查对文章体裁的判断。A 选项记叙文通常讲述故事;B 选项议论文主要是论证观点;D 选项描写文侧重于描写事物;C 选项说明文主要是解释说明事物,本文介绍新技术净化水,属于说明文。反馈 收藏 ...
百度试题 结果1 题目What do forests give us? A. Produce fresh oxygen. B. Purify water and air. C. Provide people with jobs. D. Help in regulating temperature and rainfall. 相关知识点: 试题来源: 解析 A,B,C,D 反馈 收藏
lecture/discussion,soitisimportanttotakecarefulnotesduringclass.Additionally,fromtimeto timeIwillassigngroupworktobecompletedin classorshortassignmentsto becompleted at home,bothofwhichwillbegraded. LateWork Anessaynotsubmittedinclassonthedue datewilllosealettergradeforeachclassperiodit islate.Ifitisnotturnedinby...
Before lunch,I go to the bathroom,he found a faucet of the "huahua" alone flow "tears"!Is everyone who so careless?And forgot to turn off the tap.Have something says so:if its not cherish water resources,then the earth up the last drops of water will is one of the eyes.Every time...
We should pay attention to water and light saving. When we go out, we should firstly choose the public transportation. The most important is that we must realize that we can do a lot of things to protect our environment. Its our duty to make our home better. Let’s change from ...
installed in the ductwork of a home’s central heating, ventilation, or air-conditioning (HVAC) units. Here they can safely and efficiently clean the air in the whole building. However, it is also possible to purchase portable air cleaners that work to purify the air in a sin...
A. They store water. B. They purify water. C. They carry water from one place to another. D. They create water. 相关知识点: 试题来源: 解析 C。解析:Rivers also play a role in the water cycle. They carry water from one place to another and help in the distribution of water.。反馈...
The pH level refers to the hydrogen ions found in the water. It stands for ’potential of hydrogen.’ The pH level of the water at normal drinking level, carbonate, and bicarbonate are the main contributors to its alkalinity. What is Alkalinity in Drinking Water? Alkalinity is the wat...
Water is not only a powerful drink but also a universal solvent. As such, it has the ability to dissolve and absorb molecules from a number of substances. These dissolved particles in a volume of water are the total dissolved solids (TDS) level. TDS has two forms, organic and...