多项选择题
A、0.1mm B、0.01mm C、0.001mm D、1mm
A、修约至5N/50mm B、修约至1N/50mm C、修约至0.1N/50mm D、修约至10N/50mm
A、JL4 B、JF2 C、JS1 D、JF1
A.12h,28d B.24h,28d C.12h,24d D.24h,24d
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