河流水质预测完全混合模式的适用条件是()。
A.河流为恒定流动
B.持久性污染物
C.废水连续稳定排放
D.河流混合过程段
E.河流充分混合段
参考答案:A, B, C, E
The long service of decades of the to-be-retired with the company was______a present each from the President.
A.confirmed by
B.recorded in
C.acknowledged with
D.appreciated for
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