• 2022-06-17 问题

    Of the following carbonates, the one which is most easily decomposed<br/>into oxide is ( ) A: CaCO3 B: BaCO3 C: MgCO3 D: SrCO3

    Of the following carbonates, the one which is most easily decomposed<br/>into oxide is ( ) A: CaCO3 B: BaCO3 C: MgCO3 D: SrCO3

  • 2022-06-12 问题

    Which of the following can be inferred from the passage about<br/>rocks that are found in areas where ice is common? ___ A: They are protected from weathering. B: They do not allow capillary action of water. C: They show similar kinds of damage as rocks in Death Valley. D: They contain more carbonates than sulfates

    Which of the following can be inferred from the passage about<br/>rocks that are found in areas where ice is common? ___ A: They are protected from weathering. B: They do not allow capillary action of water. C: They show similar kinds of damage as rocks in Death Valley. D: They contain more carbonates than sulfates

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