UID:654
UID:1347
UID:1361
UID:171
UID:1089
UID:55
UID:282
UID:447
注意!!!不是密度大于4.5的重金属有毒!!!是原子序数在铁后面的金属有毒!!!比如Ba密度3.51照样有毒!全变 发表于 2009-4-26 13:43
UID:1195
UID:67