钢中()可以提高钢的耐腐蚀性能及建筑钢的强度。
参考答案:磷
The police provide them _______ food , they also provide water _______ us . [ ]
A. for, for
B. for, with
C. with, for
D. with, with
下列属于财产税类的有( )。
A.房产税
B.印花税
C.车船税
D.城市维护建设税