未知题型

污水的可生化性取决于(),可用()评价。一般情况下,BOD5/COD越大,污水可生化性(),反之亦然。BOD5/COD﹤0.3,则称该污水(),BOD5/COD=0.3~0.45,则称该污水(),BOD5/COD﹥0.4,则称该污水()。

【参考答案】

污水的可生化性取决于污水中有机物的生物降解性,可用BOD5/COD比值评价。一般情况下,BOD5/COD越大,污水可生化......

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It seems you always forget-your reading glasses when yo...


单项选择题It seems you always forget-your reading glasses when you are rushing to work, your coat when you are going to the cleaners, your credit card when you are shopping...

Such absent-mindedness may be 1 to you; now British and German scientists are developing memory glasses that record everything the 2 sees.
The glasses can play back memories later to help the wearer remember things they have forgotten such as where they left their keys. And the glasses also 3 the user to "label" items so that information can be used later on. The wearer could walk around an office or a factory identifying certain 4 by pointing at them. Objects indicated are then given a 5 label on a screen inside the glasses that the user then fills in.
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[A] allow
[B] instance
[C] blank
[D] industrial
[E] frustrating
[F] items
[G] indicating
[H] highlight
[I] user
[J] complicated
[K] white
[L] annoying
[M] successful
[N] articles
[O] simple