题目：
环氧酚醛（7：3）类材料，可耐大部分酸、碱、溶剂类介质，下列哪种介质是它所不耐的（）.
A.丙酮
B.≤20%浓度氢氟酸
C.苯
D.浓度70%的硫酸
答案：
参考答案：A
解析：
见表A
环氧酚醛（7：3）类材料，可耐大部分酸、碱、溶剂类介质，下列哪种介质是它所不耐的（）
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