实物资本保全下物价变动会计计量模式是()。
A.对计量属性没有要求
B.对计量单位没有要求
C.对计量属性有要求
D.对计量单位有要求
E.对计量原则有要求
参考答案:B, C
I _________ it everywhere, but I didn't _________ it. [ ]
A. looked for; looked for
B. looked for; find
C. found; looked for
D. find; look for
简述风险的含义和分类。