The metals which we find in the earth _____ iron, lead and copper.
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举一反三
- Which of the following metals is environmental friendly? A: iron B: aluminum C: copper D: titanium
- Passage Three What kind of minerals can we find on the ocean floor A: Iron and copper. B: Gold and copper. C: Nickel and bronze. D: Iron and bronze.
- What can we add to brass to improve machining: A: Tin B: Copper C: Lead D: Manganese E: Carbon nanotubes
- Metal utensils such as iron, copper, or aluminum are appropriate to prepare decoctions.
- Of the more common elements(元素) are hydrogen, oxygen, carbon, iron, copper, etc.
内容
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The metal utensils made from iron, copper and aluminum are forbidden to decoct drugs.
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By means of the calculus we find it possible to find the area between curves for which we know the equations.
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Grey spot of oat are due to A: Copper B: Iron C: Manganese D: Zinc
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1803a8274784d91.png 的英文名称是______。 A: iron (III) carbonate B: ferric carbonate C: iron (II) carbonate D: copper (II) carbonate
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We have conducted a ______ to find out which product people find most interesting.