问答题

生物膜处理法的运行特征是什么？

答案：（ 1）要求比表面积大、空隙率高、水流阻力小、流速均匀；（2）表面粗糙、增加生物膜的附着性，并要求外观形状、尺寸均一；（...

你可能感兴趣的试题

单项选择题

Which of the following sentences is CORRECT?A.She spent the last day of vacation giving gifts and finally took a look around the harbor.B.She spent the last day of vacation giving gifts and taking a final look around the harbor.C.She spent the last day of vacation giving gifts and taking a finally look around the harbor.D.She spent the last day of vacation giving gifts and taking around a look at the harbor.

单项选择题

该报表中的留存收益加上支付给股东的股息等于损益表中的（）项目。

A税后净利润
B税前利润
C销售利润
D销售毛利