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【多选题】
关于钢材冲击韧性的叙述,不正确的有( )。A.
冲击韧性指标是通过对试件进行完全试验来确定的
B.
使用环境的温度影响钢材的冲击韧性
C.
钢材的脆性临界温度越高，说明钢材的低温冲击韧性越好
D.
对于承受荷载较大的结构用钢，必须进行冲击韧性检验
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