( ) is it that metals plays such an important part in our daily life?Awhy Bwhat Cwhere Dwhen.为什么?为什么选A?C或者D？那如果说金属什么时候开始在我们生活占有重要的作用？

It is said that some taxidriver have metal wires stuck into the passenger seats改错 The center spacer is the Silver metal spacer that is funnel shaped with hole in it 求这句如何翻译 It is made of metal 改为同义句 It ( ) ( ) of metal 英语翻译There are so many of these paths and so many metal particles that it is impossible to land a flying saucer without its being smashed by one 《What is the first metal that man learned to use》如果有人知道这篇文章开头是What is the first metal that man learned to make? --oh,it's beautiful pencil-box ,isn't it?--yes,it is ,It ___(make) of metal 英语翻译美国发来的邮件,I have another substance I found commercially that might work.It is called Everbrite Protectaclear coating.You do this by polishing with metal polish (like your sanding process,but wet and special grit),neutralize,so 英语翻译Determination of metal content of different textile materialsis very important not only for the safety of consumers,but alsofor the textile industry.It is known that some metals present incotton may contribute to problems in yarn manufact The problem is that the picture is not flat and is glued on a flat metal piece 求翻译 it is strange that 英语翻译it is( )( )that It is believe that It is said that. It is that all? it is imperative that? Is it that bad? it is discovered that matter that is not clean 和metal bars that a train move along 用一个单词怎么说?