1. Because they are present when we are on milk. 2. They are smaller, whiter and have softer enamel. 3. Our permanent teeth are coming in. 1. 乳牙被称为“乳”牙是因为它们在婴儿喝母乳时就已经存在。 2. 乳牙比恒牙小,颜色更白,珐琅质也更软。 3. 失去乳牙意味着恒牙开始生长。反馈...
百度试题 结果1 题目Your teeth are not in good condition. Why ___ your milk without sugar? not have don't have not to have not having 相关知识点: 试题来源: 解析 A 反馈 收藏
You sleep at night with your milk tooth beside your bed or under your pillow for the tooth fairy to come and take it and give you a gift in return. Ever wondered why do you have these brittle milk teeth, which we lose as we grow up? Why are they called Milk Teeth? Milk teeth ...
My colleagues and Iwere able to put together a set of 37Protoceratopsfossils ranging in size from tiny juveniles up to the largest adults. By measuring the specimens' skulls, we found that biggerProtoceratopshad proportionally longer and wider frills – positive allometry. What's more, larger ani...
指日常事务, 如打扫卫生、 洗洗刷刷、 整理家务、 修修补补等): do (ie brush) one's teeth 刷牙 *| do (ie wash up) the dishes 洗碗碟 *| do (ie polish) the silver 擦光银器 *| do the flowers, ie arrange them in vases 插花 *| I like the way you've done (ie styled) your hair...
Our bodies are getting ready for our growth. 1. Why are milk teeth called "milk" teeth? (不超过15个词)相关知识点: 试题来源: 解析 Because they come out when babies are drinking milk. 乳牙被称为“乳”牙是因为它们在婴儿喝母乳或奶粉时生长出来。反馈 收藏 ...
Another reason many people make dairy a regular part of their diet is because it’s a good source of calcium, an essential mineral needed to maintain healthy bones and teeth. Just keep in mind that your body also needs vitamin K (specifically, vitamin K2) to shuttle calcium into bone and...
Nij: What are teeth made of? Mihiri: Teeth have a few layers to them. The centre of them is soft. We call it the pulp. The pulp is protected by a strong outer layer. It's made up of mostly calcium. Nij: Calcium? That's in dairy Kid 1: It's in food like yoghurt and milk ...
B.The problems with his teeth.C.The time of his last check-up.【3】When will Mr. Cook visit Beautiful Smile DentistryA.Next Tuesday. B.Next Thursday. C.Next Friday. 免费查看参考答案及解析 题目: Why is Mike going to CharleroiA.To meet friends. B.To take photos. C.To visit a ...
Tooth enamel is pretty remarkable. It’s both the hardest substance in the body and one ofthe few tissues your body can never make more of. Once your teeth have developed, that’sit. You no longer have the specialized cells needed to build enamel.