社会交换理论中个体对于交往结果满意程度用()来表示。
A、选择比较水平
B、个体兴奋性
C、自我实现度
D、比较水平
参考答案:D
下列说法错误的是 [ ]
A.25℃时,pH=9的NaHA溶液中: c(A2- )<c(H2A)
B.25℃时,pH=9的NaHA溶液中: c(H+)十c(H2A)= c(OH–) + c(A2–)
C.25℃时,0.1 mol/LNaF溶液与0.1 mol/LCH3COOK溶液: c(F–)> c(CH3COO–)(已知酸性HF>CH3COOH)
D.25℃时,pH相等的NaF溶液与CH3COOK溶液: c(NaF)< c(CH3COOK)(已知酸性HF>CH3COOH)
Daylight saving time was instituted to increase productivity.
A.reorganized
B.started
C.encouraged
D.taught