B. Bottled water can be just tap water in a bottle. C. Plastic bottles are harmful to the environment. C. It may be better for your teeth. D. Bottled water may not be as good as we think. D. It contains fluoride. 相关知识点: 试题来源: 解析 B 【语篇导读】世界各地的人们都在...
3.细节题。根据第六段第一句 In terms of energy use, plastic bottles are also not cheap. 可知应选B项。4.细节题。根据第二段最后一句 some bottled water is really just tap water in a bottle以及第三段第三句 Also, most bottled water doesn't have fluoride (氟化物), which can make teeth ...
题目Water Bottles:Handy or Harmful?In recent years,more and more people have come to realize the bad influence plastic water bottles have on the environment.However,their use is still on the increase. Americans buy nearly 100 billion bottles of water every year.Stack (堆叠) ...
Back then, water wasn’t this glamorous thing. We didn’t track ounces in an app or carry emotional support bottles with motivational time stamps like “You’re doing great!” or “Almost there!” No one clapped for us when we hydrated. We just… got thirsty and found a spigot. Now?
1.What can we learn about bottled water from the passage? A. Plastic bottles are not expensive to make. B. It is tested that bottled water have high fluoride. C. Bottled water may cause the rise in bad teeth. D. The plastic can be broken down in less than 400 years. 2.According ...
Als o, most bottled water doesn't hav e fluoride(氟化物),which can mak e teeth stronger Kids ar e drinking mor e bottled water and les fluoridated tap water, and som e say that's ehind th e recent ris e in bad teeth.Storing is another problem. Placed near heat,th e plastic ...
water makes them not good for feeding babies and youngchildren." Also, most bottled water doesn't have fluoride(氟化物), which can make teeth stronger. Kids are drinking more bot-tled water and less fluoridated tap water, and some say that's be-hind the recent rise in bad teeth.Storing...
MATERIAL AND METHODS: Fluoride varnishes were applied on acrylic blocks and then immersed in 10 ml of deionized water and artificial saliva in polystyrene bottles. The acrylic blocks were divided in seven groups (n=10): 1.55% TiF4 varnish (0.95% F, pH 1.0); 3.10% TiF4 varnish (1.90% F...
Chitin and chitin derivatives such as chitosan are the main structural components of fungal cell walls and play an important role in Sc biosorption [30,40]. The unicellular algae Chlamydomonas reinhardtii and Pseudokirchneriella subcapitata accumulate Sc in ionic and fluoride complexes [41]. ...
(含量) of some bottled water makes them not good for feeding babies and young children."Also,most bottled water doesn't have fluoride (氟化物),which can make teeth stronger.Kids are drinking more bottled water and less fluoridated tap water,and some say that's behind the recent rise in ...