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【多选题】
对二级处理出水中的悬浮物的去除方法主要有( )。A.
纳滤
B.
硅藻土过滤
C.
化学絮凝后汽提
D.
化学絮凝后沉淀
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皮皮学刷刷变学霸
举一反三
【单选题】– When did the terrible earthquake in Wenchuan happen? -- It happened _________ the afternoon of May 12, 2008.
A.
on
B.
at
C.
in
D.
/
【简答题】When an earthquake starts, people must nm to open ground or ______.
【简答题】Where and when did the worst earthquake ever reported happen?
【简答题】When and where did the strongest earthquake happen in North America?
【单选题】(单选题)林则徐的《出嘉峪关感赋》中尾联“谁道崤函千古险?回看只见一丸泥。”运用 ( )的角度,用函谷关小如泥丸来反衬嘉峪关的雄伟。
A.
俯瞰
B.
仰视
C.
平视
D.
近视
【单选题】--When were the soldiers sent to the earthquake-stricken area? -- _______ the earthquake broke out.
A.
Shortly
B.
Unfortunately
C.
Straight
D.
Directly
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