开发商成本利润率是开发经营期利润率,且年成本利润率不等于成本利润率除以开发经营期的年数。 ( )
参考答案:对
-What's this?
-____________. [ ]
A. No, it's not a ruler
B. It is a pencil sharpener
C. No, it isn't
D. Yes, it is
混合痔是指
A.2个以上内痔
B.2个以上外痔
C.内外痔同时存在
D.内痔多发,形成环状痔
E.直肠上下静脉丛彼此相通形成的痔