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【简答题】
试着分析下列效应对沉淀溶解度的影响(增大、减小、无影响):(1)同离子效应_______沉淀的溶解度;(2)盐效应_______沉淀的溶解度;(3)配位效应_______沉淀的溶解度。
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举一反三
【简答题】A．ralses B．causes C．takes D．moves
【简答题】A．ways B．functions C．resorts D．moves
【简答题】__________ A) tends B) turns C) moves D) intends
【单选题】Non-profit organizations:
A.
may provide services to people paid for by others.
B.
have the same measures of success as a for-profit business.
C.
do not have a profit objective, so the marketing concept does not apply.
D.
are fundamentally different from business firms; so they should adopt a production orientation rather than a marketing orientation.
E.
do not face competition.
【简答题】C 标准库函数中,数学函数的原型在( )头文件中。
【单选题】A non-profit corporation:
A.
cannot generate any income
B.
always has tax-exempt status
C.
cannot distribute any profit to its members
D.
both b and c
E.
all of the above