【单选题】The 'solidarity-with-housewives strand of feminist thought' (the first sentence in the fourth paragraph) refers to ______.
A.
the first strand of feminist thought
B.
the second strand of feminist though
C.
the third strand of feminist thought
【单选题】The 'solidarity-with-housewives strand of feminist thought' (the first sentence in the fourth paragraph) refers to ______.
A.
the first strand of feminist thought
B.
the second strand of feminist thought
C.
the third strand of feminist thought
【单选题】某银行有1000个客户,调研人员从中抽取100个进行抽样调查。如果用等距抽样抽取的第一个号码为3,则抽取的最后一个号码是( )。
【判断题】下列各电解质对某溶胶的聚沉值分别为: [NaCl]=0.512 mol·dm -3 , [Na 2 SO 4 ]=4.31×10 -3 mol·dm -3 , [Na 3 PO 4 ]=8.91×10 -4 mol·dm -3 。若用该溶胶做电泳试验时,胶粒的电泳方向是向负极移动(胶粒带正电)。
【单选题】下列各电解质对某溶胶的聚沉值 ( 单位:mmol · dm - 3 ) 分别为:50[KNO 3 ] 、110[KAC ] 、0.81[MgSO 4 ] 、0.095[Al(NO 3 ) 3 ] ,该胶粒的带电情况( )