A、原生矿物质 B、次生矿物质 C、外来矿物质 D、内在矿物质
A.11-20mm B.10-20mm C.13-25mm D.20-35mm
A.Mad B.Minh C.Mt D.Mf
A.1000t B.500t C.200t D.100t
A.100mm B.50mm C.25mm D.150mm
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