"No one is perfect. That's why pencils have erasers. " As this saying suggests, we all make mistakes in our lives. The good thing is that it's 1.___(总是,一直) possible to correct those mistakes, just like erasers can rub off a misspelled word. Pencils don't always come with ...
Third, clothing is also made from trees and plants. Books, paper, pencils and erasers all come from plants. Besides, animals live in the forest and eat the fruit from the trees. What's more, plants help make the air clean and fresh. The plants cover the soil and can stop the wind....
Why do pencils look bent when in water? How are interference experiments evidence for the wave theory of light? Why is it that a computer monitor or a TV screen can produce millions of colors using only the 3 primary additive colors? Likewise, how can a printer print milli...
Why is the base of a cooking pan made thick and heavy? Why does a charged scale attract small pieces of paper? Why do pencils look bent when in water? Why is sand drier than clay? Why aluminium wires used in the transmission of electrcity are not insulated?
2.可以用“warmclothing(暖和的衣服)”“protectiveclothing(防护服)”等短语来描述特定类型的服装。例句:Shespendsalotofmoneyonclothing.(她在衣服上花了很多钱。)Weneedtobringenoughclothingforthetrip.(我们需要为旅行带足够的衣服。)4.Somemedicineandclothingarealsomadefromplagts....
Pencils are made in many different 10 ,but most people like yellow ones.There are more yellow pencils than any other color.No one knows why people like yellow pencils 11 they do.Someone once made a lot of pencils.Half were yellow and half were green.A man bought them and 12 them for ...
Books. paper. pencils and erasers all come from (5)eover plants. (1)a. People can eat plants or use them as medicine. (4)a. Plants help make the air clean and fresh. b. Many animals eat the fruit from the trees. b. The plants cover the soil and can stop the dust. ...
Why are solids hard? Why is the skin an important part of the innate immune system? Why does the needle on an electroscope go to neutral when grounded? Why are the alveolar walls so thin? Why are electrodes often made from graphite?
Why are they green? Why is the value of r2 = r2-r1? Why are pens used in space and pencils are not? Why does the blood of an injured deep-sea diver look greenish-black in underwater photographs taken with natural light, but red when flashbulbs are used? Why do we see two rainbows...
Dental researchers and toothbrushers worldwide are starting to give charcoal toothpaste a try. What Is Activated Charcoal? Cooking charcoal (or even the kind used for artist's pencils) is made by slow-burning natural materials, such as wood, peat or coconut shells. Activated charcoal is created...