It is animals and plants which lived in or near water whose remains are most likely to be preserved， for one of the necessary conditions of preservation is quick burial， and it is only in the seas and rivers， and sometimes lakes， where mud and sit have been continuously deposited， that bodies and the can be rapidly covered over and preserved.
they are not prepared even to admit the possibility that noise affects people. On the other hand， those who dislike noise will sometimes use most inadequate evidence to support their pleas for a quieter society. This is a pity， because noise abatement really is a good cause， and it is likely to be discredited if it gets to be associated with had science.
新概念可以说是学英语人士都熟悉并喜欢的一套教材。教材再好，让娃捧着书自学也难免枯燥，所以今天给大家带来了新概念动画版！1-4册都有，包含课文动画和教材内容讲解。还赠送新概念语法笔记电子版！新概念英语共有四册，如果是给娃学，第一、二册就够了。
What do oilmen want to achieve as soon as they strike oil?The deepest holes of all are made for oil， and they go down to as much as 25，0000 feet. But we do not need to send men down to get the oil out， as we must with other mineral deposits. The holes are only borings， less than a foot in diameter. My particular experience is largely in oil， and the search for oil has done more to improve deep drilling than any other mining activity. When it has been decided where we are going to drill， we put up at the surface an oil derrick. It has to be tall because it is like a giant block and tackle， and we have to lower into the ground and haul out of the ground great lengths of drill pipe which are rotated by an engine at the top and are fitted with a cutting bit at the bottom.
学了一段时间《新概念英语》，发现这套经典教材多年来印刷上百次，却一直是第一版。先说编写错误：1，第一册第157页，“Whattime of day is it”翻译为“现在是几点钟”，应改为“这是当天的什么时候”。
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