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【单选题】
下列离子方程式书写正确的是（ ）A.
将Na投入到CuSO 4 溶液中：2Na+Cu 2+ =2Na + +Cu↓
B.
向Ba（OH） 2 溶液中逐滴加入NH 4 HSO 4 溶液至刚好沉淀完全并加热溶液Ba 2+ +2OH - +H + + S O 2-4 + N H +4 △ . BaSO 4 ↓+NH 3 ↑+2H 2 O
C.
硫酸亚铁溶液中加入用硫酸酸化的过氧化氢溶液：Fe 2+ +2H + +H 2 O 2 =Fe 3+ +2H 2 O
D.
亚硫酸钠溶液中加入硝酸： S O 2-3 +2H + =H 2 O+SO 2 ↑
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举一反三
【单选题】____ is a term used to identify concern with the environmental consequences of a variety of marketing activities.
A.
Greenhouse business
B.
Hybrid business
C.
Greenfield business
D.
Green marketing
E.
Alternative marketing
【多选题】Which of the following is true about online advertising?
A.
advertisers have aggressively increased online spending and cut budget on traditional channels
B.
how to adequately measure its results is a concern
C.
two-way communication between advertisers and potential customers becomes possible
D.
online advertising does not include local marketing
【单选题】Robert Jonas is in charge of a new marketing effort directed toward Peru. In order for his company to effectively market and distribute to all of Peru’s major cities, Mr. Jonas must devise a logistics...
A.
Competitive forces
B.
Cultural forces
C.
Geography and infrastructure
D.
Economic forces
【多选题】小脑蒲肯野细胞
A.
是小脑皮质中体积最大的细胞
B.
其胞体位于颗粒层内
C.
是小脑皮质中一种主要的中间神经元
D.
树突伸至分子层内，分支呈扁柏叶状
E.
是小脑皮质中体积最小的细胞
【单选题】Robert Jonas is in charge of a new marketing effort directed toward Peru. In order for his company to effectively market and distribute to all of Peru's major cities, Mr. Jonas must devise a logistic...
A.
Competitive forces
B.
Cultural forces
C.
Geography and infrastructure
D.
Economic forces
E.
Political/legal forces
【简答题】What does mechanical design concern? It is a vast field of engineering technology which not only concerns the original conception of the product in terms of its size, shape and ______________, but als...
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