债券价格和市场利率的关系是:利率(),价格()。
A.上升;下降
B.上升;上升
C.下降;不变
D.下降;下降
参考答案:A
— I didn’t do well in the exam. What about you?
— I did _____ you. Maybe even worse.
A.not better than
B.not worse than
C.as well as
D.no better than
(10分)常温下,将0.02molNaOH和0.1molNH4Cl溶于水配成1L溶液,
(1)(6分)该溶液中存在的三个平衡体系为_______ __ 、_ _、 _____ _ _ ___。
(2)(2分)溶液中共有 种不同的粒子。
(3)(2分)物质的量之和为0.1mol的两种粒子是___ __、 。