the chinese famous song er quan ying yue was composed by liu tianhua.
非盈利性社会组织的监督构成了社会质量监管的重要组成部分。
生态系统中的“熵”是指( )。
有“诗魔”之称的唐代诗人是( )
不需要卖方办理进口清关手续的术语有()。
“五岳寻仙不辞远,一生好入名山游”,说的是哪位诗人?( )
盛唐名相张说将王湾的哪两句诗作为写诗的楷模( )
生态文明示范市建设指标(2016)涉及哪些领域( )。
杜甫诗句“卧龙跃马终黄土”中的“卧龙”指的诸葛亮
污水处理厂预处理工艺能去除悬浮固体、漂浮物质和泥砂等
为了降低地下水位或拦截地下水,可以在地面以下设置渗沟,渗沟有()几种形式。
土中水自上而下渗流时,土中的有效应力( )。
某正弦电压有效值为380v,频率为50hz,计时始数值等于380v,其瞬时值表达式为( )
五迟、五软的病因有( )
2. the correct description about domain is ( ) a.one or several regions, globular or fiber-shaped, performing their functions independently. b.a special spatial conformation composed of two or three peptide segments with specified secondary structures. c.a compact folded region in the tertiary structure of proteins. d.a secondary structure.
5. the mechani of the irreversible inhibition of the enzyme is that the inhibition a.will cause the coenzyme denaturation. b.will combine with the active center of the enzyme by covalent bond formation. c.can be removed by dialysis. d.will combine with non-covalent bond interact with the active center.