单选题汽油的TLV值为500，甲笨的TLV值为200，则二者的毒害性（）。A前者小B后者小C二者一样大D无法确定
单选题
汽油的TLV值为500，甲笨的TLV值为200，则二者的毒害性（）。
A
前者小
B
后者小
C
二者一样大
D
无法确定
参考解析
解析：
暂无解析
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