B岩组的岩性主要是各种片岩夹有大理岩、英岩.The lithology of B petrofabric is schist interlated with marble , quartzite.大理岩, 变质岩, 形成时当石灰石重新结晶.Marble, a metamorphic rock, forms when limestone re - crystallizes.摘要青海软玉矿床产于中酸性侵入岩与大理岩接触带中.Nephrite...
Few people, when it comes down to it, are so selfless.说到底，很少有人能这样无私。He is selfless as a teacher.作为一名教师, 他是无私的。She was a wonderful companion and her generosity to me was entirely selfless...她是一个极好的伴侣，她对我慷慨大方，一心只为我着想。A sel...
令人欣慰的是，吸烟量在逐渐下降。Thankfully the smoking of cigarettes is on the decline.她告诉了我一些令我欣慰的消息。She gave me some reassuring news.我感到欣慰的是我的儿子获得了奖学金.I was thankful that my son had won the scholarship....