下列化学物品中，可导致中毒性视神经病变的有（）
A.洋地黄
B.甲醇
C.霉变花生
D.一氧化碳
E.铅
参考答案：A, B, C, D, E
The little girl told him that she had watched the wonderful football match ______.[ ]
A. today
B. tomorrow
C. the month before
D. the next month
矿井主要运输大巷铺设轨道间隙不得大于（）。
A.5mm
B.6mm
C.7mm
