international environmental law has evolved over at least four distinct periods. the first period from the creation of the united nations to stockholm conference.
what are the representative regulations of the wetlands and forests? what is the main content?
although international custom are the most important sources of international law in today's world, international treaties is the oldest one.
（ ）被歌迷亲切的称为“拥抱世界的民谣”、“大自然母亲的儿子”“桂冠诗人”。
汽油机曲轴一般采用调质钢或非调质钢，柴油机曲轴一般采用球墨铸铁铸造。()
the purpose of process standards is to stipulate how many pollutants from one pollution source can discharge, or the concentration of pollutants in the emissions.
下列关于税收减少，表述合理的是（ ）
chinese music, originated from nature. the bone flute, which was made 8,000 years ago, could also imitate the sounds of ______.
【单选题】客户端网页脚本语言中最为通用的是（）。
【单选题】表达式parseint("12",2)的结果是（）。
【判断题】网站规划是指在网站建设签对市场进行分析，确定网站的目的和功能，
which of the following expressions is not used to give directions?
which of the following expressions do not show an acknowledgement of someone's opinion?
帕帕尼克所认为的设计关键词是什么？
可以提高生产率的方法是（ ）
which of the following words do not mean talented?