信托投资基金的特点:()
A、由专家运作、管理,可避免投资的盲目性和降低错误概率
B、多元化组合投资,可分散风险
C、流动性高,变现性好
D、统一投资
参考答案:A, B, C
下列有关沉淀纯净陈述不正确的是()
A.洗涤可减少吸留的杂质
B.洗涤可减少吸附的杂质
C.陈化可减少吸留的杂质
D.沉淀完成后立即过滤可防止后沉淀
In perfectly competitive constant-cost industries and perfectly competitive increasing-cost industries, respectively, what is the most likely long-run effect of a permanent increase in demand ncreasing-cost industry Constant-cost industry()①A. price decreasesprice decreases ②B. price decreasesprice remains unchanged ③C. price remains unchangedprice decreases
A. ①
B. ②
C. ③