When anaerobic bacteria convert the sewage to an inert sludge, .A.no oxygen is neededB.oxygen is nec

When anaerobic bacteria convert the sewage to an inert sludge, .

A.no oxygen is needed

B.oxygen is necessary

C.oxygen is given off

D.no gas is produced

您可能感兴趣的试题

Which of the following problems should be taken when cleaning the air filter on a diesel engine equipped with a turbocharger? .

答案解析
Vee-type engines have the connecting rods from two cylinders connected to each _____ of the crankshaft.

答案解析
A fire in a pile of dunnage would be classified as a _____.

答案解析
能提高边界润滑中形成吸附膜能力的添加剂是（）。

答案解析
The term “moderate speed” was previously interpreted as meaning a speed which would enable a vessel ______ within half the range of visibility.

答案解析
离心水泵改输燃料油时，如管路状况不变，则流量________。

答案解析