单项选择题
A.0.5m B.0.3m C.1.5m D.1m
A.2g5s4袋 B.27mg150s薄膜衣 C.0.4g10s6板 D.10g9袋
A.0-10℃ B.0-20℃ C.0-30℃ D.0-40℃