【单选题】按照配位理论,配离子是指( )与一定数目的( )结合形成的具有( )空间构型的( )结构单元。
B.
金属离子或原子 中性分子或阴离子 一定 稳定
【简答题】变异系数(coefficient of variation)
【简答题】A.difference B.colorfulness C.diversity D.variation
【简答题】变异(Variation )(名词解释)
【单选题】On an isomagnetics chart, the line of zero variation is the __ ___
【单选题】____ is speech variation according to the particular area where a speaker comes from.
【简答题】What is language variation?
【单选题】______variation of language is the most discernible and definable in speech variation.
【单选题】S-R variation refers to
A.
stringent --> relaxed variation
B.
cell wall defect bacteria
C.
nonpathogenic --> pathogenic variation
D.
smooth -- rough colony variation