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【单选题】
下列关于沉淀池理论的说法，正确的是（）A.
砂粒在沉砂池中的沉淀方式大致为区域沉淀
B.
活性污泥法在二沉上部的沉淀大致为絮凝沉淀
C.
浓缩池开始阶段及二沉池下部为压缩沉淀
D.
二沉池污泥斗中为自由沉淀
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举一反三
【单选题】what makes the woman afraid of getting old?
A.
having little to look forward to
B.
facing the day to retire from work
C.
lack someone to depend on
D.
physical inability and loneliness
【简答题】已知立体的主视图和俯视图,有三种不同的左视图,判断哪个是正确的?
【单选题】What makes the woman upset?
A.
She hurts her arm very badly.
B.
She is worried about the concert.
C.
She fails to get a ticket for the concert.
D.
She makes no progress in violin-playing.
【单选题】What makes the woman unhappy about?
A.
That she gets a chance to speak out.
B.
People like the convenience of cell phones.
C.
The way people use their cell phones in public places.
【简答题】是一种 运用固定的格子设计版面空间布局的 平面设计方法与风格。
【单选题】What makes the woman want to call Elizabeth?
A.
She owes her a great favor.
B.
She is sure that Elizabeth would help them.
C.
Elizabeth has always been so helpful.
D.
It’s still early.
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