菌毒敌属于()消毒剂.
A.醛类
B.氧化剂类
C.复合酚类
D.季铵盐类
参考答案:C
I was attracted by ________ most unusual picture made of ________ bits of coloured plastic
A.a…/
B./…/
C.a…the
D.the…the
优先股的股息一般不会很高,而且当公司经营情况好、利润率高的时候优先股股东得不到这部分增长的收益,而普通股股东得到的收益可能大大小于优先股股东。( )