99色精品-9色在线-99色在线-99色视频国产欧美日产一区二区三区_亚洲精品亚洲人成在线观看_四虎在线精品永久观看_免费一级a一片久久精

單項(xiàng)選擇題

The designed capacity is 25 tons a day, but the fresh water generator can only （） 22 tons at present.

A.consume
B.distill
C.run
D.operate

你可能感興趣的試題

單項(xiàng)選擇題

Clean oil is achieved in a clarifier bowl where the impurities and water collect at the bowl （）.

A.bottom
B.top
C.center
D.periphery

單項(xiàng)選擇題

The fresh water generator produces fresh water （）.

A.by cooling sea water
B.by heating sea water
C.by evaporation of sea water
D.by purifying sea water