urea poisoning尿素中毒urea cycle尿素循环Methods: The synthesis uses urea as material process includes condensation, opening loop, chloridization and nitrosation reaction.方法以尿素为原料,经缩合, 开环, 氯化,亚硝化而得.A kidney also takes urea and mi...
They would move heaven and earth to stop me if they could.可能的话，他们会千方百计地阻止我。"For heaven's sake!" Dot expostulated. "They're cheap and they're useful."“拜托！”多特反驳道，“它们又便宜又管用。”Heaven forbid that he should leave...