• 2022-10-24 问题

    堇青石 (Iolite)的折射率是() A: 1.675~1.701 (+0.029,-0.010) 点测为1.68 B: 2.616~2.903 C: 1.542~1.551 (+0.045,-0.011) D: 1.716~1.731 (±O.004)

    堇青石 (Iolite)的折射率是() A: 1.675~1.701 (+0.029,-0.010) 点测为1.68 B: 2.616~2.903 C: 1.542~1.551 (+0.045,-0.011) D: 1.716~1.731 (±O.004)

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