标题: 求助~ 问GWD语法一题~ [打印本页] 作者: Alanandluck 时间: 2011-1-26 19:09 标题: 求助~ 问GWD语法一题~ Q30: Under high pressure and intense heat, graphite, the most stable form of pure carbon, changes into the substance commonly referred to as diamond and remaining this way whether or not the heat and pressure are removed.