<strong id="uynjx"></strong>

單項(xiàng)選擇題

The basic process of biological sewage treatment consists of the liquor either by bubbling air through it or by agitating the surface（）

A.oxygenating
B.oxidizing
C.deoxygenating
D.proportioning

你可能感興趣的試題

單項(xiàng)選擇題

When the garbage is mixed with some discharges having different disposal or discharge requirements, shall apply（）

A.any requirement appointed by the Officer
B.the most suitable requirement
C.the most stringent requirement
D.no requirement

單項(xiàng)選擇題

Disposal of all kinds of garbage but is prohibited within Special Areas（）

A.plastics
B.comminuted or ground papers, rags, glass, metal etc
C.food waste comminuted or ground
D.Incinerator ash

<video id="ckzjw"><sup id="ckzjw"></sup></video>