微生物传感器快速测定法测定水中生化需氧时时,对微生物膜内菌种()的是高浓度杀菌剂,农药类和含游离氯废水。
A.没有影响
B.有毒害作用
C.有益作用
D.有抵制作用
参考答案:B
Maggie has been fortunate to find a job she loves and, , she gets well paid for it.[ ]
A. sooner or later
B. what's more
C. as a result
D. more or less
胶带跑偏的原因有巷道变形、底鼓使支架不正,托辊倾斜等。