脂肪酸钠常用作浮选捕收剂,它属于()型。
A.强酸
B.弱碱
C.强酸弱碱
D.强碱弱酸型
参考答案:D
——last week’s snow and this week’s rain really do good to the drought-hit areas, which will contribute to the growth of crops.
——Leaders at all levels and farmers ____________________.
A cry for the moon B are off the top of their head
C are over the moon D kill the fatted calf
基本建设过程中破坏的土地,土地复垦费用可以从( )中列支。
A.生产成本
B.企业利润
C.土地出让金
D.基本建设投资