介绍了鉴别氯代乙酸的反应原理和操作方法.Reaction principles of chloroacetic acid detection and its operation Methods: Were introduced.表明利用生物技术控制氯代有机物污染的应用前景是光明的.Controlling of chloroorganics pollution by using biological technology has a br...
Other changes include more tolerant attitudes to unmarried couples having children.其他变化包括对非婚夫妇生育更为宽容的态度。They refused to rent an apartment to an unmarried couple.他们拒绝把公寓租给未婚情侣。She left no will and was unmarried.她没留下遗嘱,也没结...