单项选择题
A.0.06～0.1g B.0.6～1.5g C.1～3g D.3～9g E.6～15g
A.0.005～0.01g B.0.015～0.03g C.0.03～0.06g D.0.1～0.3g E.0.3～0.9g
A.0.005～0.01g B.0.015～0.03g C.0.03～0.09g D.0.1～0.3g E.0.3～0.9g
A.0.05～0.1g B.O.1～0.5g C.0.5～1g D.1～3g E.3～9g
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