化学性废物
参考答案:
化学性废物:具有毒性、腐蚀性、易燃易爆性的废弃的化学物品。
2012年武汉市约有71000个初中毕业生,其中71000这个数用科学计数法表示为
A.71×103.
B.7.1×105.
C.7.1×104.
D.0.71×105.
The garden _____ while they were away from here.
A.took good care of
B.was taken good care
C.was taken good care of
D.was taking good care of