下列说法不正确的是()。A二氧化碳是酸雨的主要成分B氢气是一种理想的清洁燃料C碳酸氢钠可用于治疗胃酸过多D氯化铁溶液可用于制作印刷铜电路板

下列说法不正确的是()。A二氧化碳是酸雨的主要成分B氢气是一种理想的清洁燃料C碳酸氢钠可用于治疗胃酸过多D氯化铁溶液可用于制作印刷铜电路板

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Tony, you’ve got a fever. You_______ that cold shower last night.Amight not have

Tony, you’ve got a fever. You_______ that cold shower last night.Amight not haveBcould have hadChadn’t haveDshouldn’t ha

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It was John who _______ the idea of doing it this way.Adawned onBstruckChit on D

It was John who _______ the idea of doing it this way.Adawned onBstruckChit on Doccurred

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As there is less and less coal and oil, scientists are exploring new ways of mak

As there is less and less coal and oil, scientists are exploring new ways of making use of _______ energy, such as sunli

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John’s score on the test is the highest in the class; he _____ last night.Amust

John’s score on the test is the highest in the class; he _____ last night.Amust study Bshould have studiedCmust have stu

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