A.自養(yǎng)菌B.異養(yǎng)菌C.藍(lán)藻D.硝化菌
A.專性需氧菌B.微需氧菌C.兼性厭氧菌D.專性厭氧菌
A.6.4~6.8B.7.2~7.6C.7.8~8.1D.8.2~8.6