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【单选题】
关于生物脱氮除磷,以下说法正确的是( )A.
氨化反应只能在厌氧条件下发生
B.
在缺氧环境中，既可以发生硝酸盐的反硝化作用，也可以发生菌的过量吸磷过程
C.
污水中的氮只有通过氨化、硝化、反硝化后被去除
D.
在好氧状态下，菌将细胞内的水解为正磷酸盐
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【单选题】下列说法中，正确的个数有（ ） ①同一平面内，不相交的两条直线是平行线；②在同一平面内，两条不相交的线段是平行线； ③过一点可以而且只可以画一条直线与已知直线平行；④一条直线有无数条平行线； ⑤过直线外一点可以作无数条直线与已知直线平行．
A.
0个
B.
1个
C.
2个
D.
3个
【简答题】What did Albert Einstein and Thomas Edison have in common?
【单选题】Who has been working at the making of the atomic bomb from beginning to end'?
A.
Albert Einstein.
B.
Harold C. Urey.
C.
Ernest O. Lawrence.
D.
J. Robert Oppenheimer.
【简答题】大众包餐公司实施准时化服务有无困难，请加以解释。
【单选题】What did Albert Einstein and Thomas Edison have in common?
A.
They were thought to be slow learners in childhood, but they made magnificent discoveries through their hard work.
B.
They were thought to be fast learners in childhood, and they made magnificent discoveries through their hard work.
C.
They were thought to be slow learners in childhood, and they failed to make magnificent discoveries.
D.
They were thought to be fast learners in childhood, but they failed to make magnificent discoveries.
【单选题】What common fallacy did people have about Albert Einstein?
A.
He had no wife.
B.
No one would recommend him for a academic position.
C.
He worked at M.I.T.
D.
He had no hair.
【简答题】什么是大众?大众有哪些特点?
【简答题】大众社会论认为“大众传播的受众就是大众”，请辨析。
【简答题】在引入第三方物流服务中你会向大众包餐公司提出什么建议?
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