对于UASB,其典型的设计负荷是()kgCOD/(m3.d)。
A.1~5
B.4~15
C.10~15
D.50~100
参考答案:B
Bob, what do you______ our school? [ ]
A. think of
B. think about
C. love
D. think
久病精气大衰的患者,突然目显光彩,两颧泛红如妆是()
A.得神
B.少神
C.失神
D.假神
E.神乱