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> 建筑外保温材料的燃烧性能（）。 A 宜为A级，且不应低于B1级 B 宜为A级，且不应低于B2级 C 宜为A级，且不应低于B3级 D 宜为B1级，且不应低于B2级

问题：

发布时间：2024-09-09

建筑外保温材料的燃烧性能（）。

A

宜为A级，且不应低于B1级

B

宜为A级，且不应低于B2级

C

宜为A级，且不应低于B3级

D

宜为B1级，且不应低于B2级

参考答案：

提问用户：6a***EOM

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