) Let in the air to keep the ink freshB) Help people breathe (呼吸) if they choke (噎住) on themB) Help people breathe (呼吸) if they choke (噎住) on themB) Help people breathe (呼吸) if they choke (噎住 ……

树叶也会“屏住呼吸”树叶也会“屏住呼吸”Trees have small holes in their leaves. They use them to breathe (呼吸). When... we hold our breath during a fire.Trees have small holes in their leaves. They use them to breathe (呼吸 ……

, the holes can let air go in and people can still breathe (呼吸).The little holes are air holes. They can...心地). If this happens, the holes can let air go in and people can still breathe (呼吸). ……

;Living on land is not easy. Our amazing skills help a lot!Living on land is not easy. Our amazing skills help a lot!Skill 1Skill 1We breathe (呼吸) with our skin. We also breathe with the lining ……

). There are also holes in the front that allow the dog to breathe freely. Crustless (无硬... releases the hand, creating a pat-on-the-back function. Gerbil (沙鼠) shirt It is an invention for anyone ……

in a plastic umbrella, which is attached (附着) to the animal’s waist (腰). There are also holes in the front that allow the dog to breathe freely. Crustless (无硬皮的) sandwiches While it’s often the case ……

in a plastic umbrella, which is attached (附着) to the animal’s waist (腰). There are also holes in the front that allow the dog to breathe freely. Crustless (无硬皮的) sandwiches While it’s often the case ……

Why two holes?为什么有两个洞？One warm spring afternoon, a mother is playing in the yard1 with her two young kids. Her three-year-old daughter asks her why there are two holes in their noses. Her four-year ……

) to protect your face.3. A bright-colored cotton T-shirt with a bug design suits a young scientist.4... for spring adventures.4. Lightweight binoculars (双眼望远镜) are right for your safari.5. Cool knickers help you ……

of scientists from the Massachusetts Institute of Technology, US. It may look strange with its ventilation holes... of the study, told Science Daily.When you feel hot and sweaty, the holes open and let air through ……

shell on his back. They used sticky (粘的) things to fix (固定) the shell. They also made six holes on the shell. They could breathe easily through the holes. The shell was useful. As time passed by (随着 ……

(搜索) the internet to find out. Plants need to breathe (呼吸) too. The holes in the lotus root help the plant to breathe. Plants need to breathe (呼吸) too. The holes in the lotus root help ……

Einstein knew about them.B. They were found 100 years ago.C. They were made by black holes.D. They can.... B. Black holes. C. Stars.D. Different materials. 3. What does Paragraph 3 talk about?A. How black ……

a drier one.D) They can breathe better in more humid (潮湿的) environments.D) They can breathe better in more humid (潮湿的) environments.The answer is D.The answer is D.Snails breathe through their skin (皮肤 ……

Elephants breathe 12 times a minute. ……