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This is especially true in today's extremely {{U}}harsh{{/U}} economic climate.

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如果废水中各种有机物的相对组成没有变化下列说法正确的是

TOD＞COD＞BOD₂₀＞BOD₅ COD＞TOD＞BOD₂₀＞BOD₅ BOD₂₀＞TOD＞COD＞BOD₅ BOD₅＞BOD₂₀＞COD＞TOD

耗氣物质污染指标一般有

BOD 、COD、SS COD、SS、TOD SS、BOD、TOD TOD、BOD、COD

22.---Chattingonlinehasbecome_________popularmeans

/ ; the a ; the / ; / a ; /

Listeningattentivelyinclassandreviewingintime_____

is , when are, when is, while are, as

Doingyourhomeworkisasurewaytoimproveyourtestscores

before since when after

Doingyourhomeworkisasurewaytoimproveyourtestscores

as since when after

—Peopleespeciallytheyoung______bytheirfriends.—Tha

easily influences easily influenced are easily influenced will be easily influenced

耗氧物质污染指标一般有

BOD、COP、SS COD、SS、TOD SS、BOD、TOD TOD、BOD、COD

Doingyourhomeworkisasurewaytoimproveyourtestscores

before since when after

Doingyourhomeworkisasurewaytoimproveyourtestscores

before as since when

.---Chattingonlinehasbecomepopularmeansofcommunica

/ ; the a ; the / ; / a ; /

Doinghomeworkisasurewaytoimproveyourtestscoresandt

Doingyourhomeworkisasurewaytoimproveyourtestscores

when while as after

Doingyourhomeworkisasurewaytoimproveyourtestscores

before since when after

Thisisespeciallytrueintoday'sextremelyharsheconomi

difficult easy normal intelligent

Livingoffhomeisasurewaytoimproveyourself-careabili

before since when unless

Doingyourhomeworkisasurewaytoimproveyourtestscores

before as since when

Doingyourhomeworkisasurewaytoimproveyourtestscores

before as since when

如果废水中各种有机物的相对组成没有变化下列说法正确的是

TOD>COD>BOD20>B0D5 COD>TOD>BOD20>BOD5 BOD20>TOD>COD>BOD5 BOD5>BOD20>COD>TOD

Doingyourhomeworkisasurewaytoimproveyortestscoresa

before since when after

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