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结晶紫萃取光度法萃取Au，100cm 3 试液含Au100μg，取其20cm 3 试液用5cm 3 CHCl 3 萃取，萃取率E%=100%，用1cm比色皿，在λ max =600nm下测得T%=50%，试计算A，a，ε，S。(M(Au)=197.0)。
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【单选题】S1:Avonport port control, this is MV Blue Whale. I am at anchor at Lambs Road. Over.S2:MV Blue Whale, this is Avonport port control. You must heave up anchor .You are at anchor at a wrong position. Yo...
A.
No.4 dock.
B.
No.3 dock.
C.
No.2 dock.
D.
No.1 dock.
【多选题】《共产党宣言》指出，“资产阶级的灭亡和无产阶级的胜利是同样不可避免的”。这是因为
A.
资本主义基本矛盾包含着 “现代的一切冲突的萌芽”
B.
资本积累推动资本主义基本矛盾不断激化并最终否定资本主义自身
C.
国家垄断资本主义是资本社会化的更高形式，将成为社会主义的前奏
D.
资本主义社会存在着资产阶级和无产阶级两大阶级之间的矛盾和斗争
【简答题】S1:What shall you do when an oil spillage accident occurs?S2:I shall sound the oil spill signals to muster the crew to fight against the spillage and collect the oil.Meanwhile,I will report it to the ...
【简答题】S1:Avonport port control, this is MV Blue Whale. I am at anchor at Lambs Road. Over.S2:MV Blue Whale, this is Avonport port control. You must heave up anchor .You are at anchor at a wrong position. Yo...
【单选题】已知：人工智能领域专利：CN201710724102.1，CN109426863A，G06N99/00等信息，下列描述不正确的是：
A.
CN201710724102.1 为专利申请号
B.
CN109426863A 为专利公开号
C.
G06N99/00 为专利分类号
D.
G06N99/00 为专利公开号
【简答题】中国古城建筑有哪些特征?
【简答题】中国古城建筑有哪些特征
【单选题】S1:Avonport port control, this is MV Blue Whale. I am at anchor at Lambs Road. Over.S2:MV Blue Whale, this is Avonport port control. You must heave up anchor .You are at anchor at a wrong position. Yo...
A.
in the center of the fairway.
B.
to the left of the fairway.
C.
clear of the fairway.
D.
at the end of the fairway.
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