Ozone forms a essential protective layer around the .错误改正 答案 【解析】【答案】将a改为an【解析】本句的句意为“臭氧形成了地球周围必需的保护层”。essentialy 是形容词,表示“必需的、必要的”,是以元音因素开头的单词,所以前面的不定冠词要用an,而不是a。所以应该将essentiall 前的a改为an。相关...
The ozone layer is a protective layer around the planet Earth.───臭氧层是地球的保护层. Varnish is the glossy protective layer applied to wooden furniture and other surfaces.───清漆是用于木质家具和其他表面的光滑的保护层。 英语使用场景 In some diseases, the protective layer in a joint wear...
Ozone forms a protective layer between 12 and 30 miles above the Earth's surface. 臭氧在距地球表面12至30英里的地方形成一个保护层。It's admirable to be protective of our kids, but is it good? 保护我们的孩子是令人赞赏的，但这对我们的孩子好吗？The research found moderate drinking has a ...
百度试题 结果1 题目Ozone is a gas that forms an essential protective layer___ the earth. A. beside B. behind C. next to D. around 相关知识点: 试题来源: 解析 再习 再习 D再习 再习 反馈 收藏
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The protective layer is obtd. by treating the surface with a hot soln. contg. an alkali metal or alkali earth metal polyacrylate or polymethylacrylate salt and pref. a hydrazine salt or hydrazine itself at 225-285 degrees C. The mol.wt. of the prefd. sodium polyacrylate is 80,000-100,...
The 24 research papers consider such aspects of materials science as spectroscopic and electronic properties of layer-by-layer assembled gamma-irradiated silver/poly(acrylic acid) nanocomposites, the compatibility of elastomers in biodiesel-diesel-bioethanol blend, synthesizing and characterizing poly(glycerol...
根据第一段“Earth’s protective ozone(臭氧) layer is slowly but noticeably healing at a pace that would fully mend the hole over Antarctica in about 43 years, a new United Nations report says. (一份新的联合国报告称,地球保护性臭氧层正在缓慢但明显地愈合,其速度将在大约43年内完全修复南极洲...
with white clouds, and looking at it at night and seeing it black with bright dots of stars, wouldn't think in a million years (if he were to live in his same status) that there is an actual protective layer (what we call today the Ozone layer) covering the entire planet earth!!!
根据第二段1,2行The ozone layer blocks more than 90 percent of the sun's ultraviolet radiation(紫外线辐射), helping to make life on Earth possible.说明B正确。小题2:A 细节题。根据第三段2,3,4行The model, fed with fresh data from statellites and airplanes, was supported by the fact ...