下列钢种()的氧化烧损量少。
A.高合金钢
B.低合金钢
C.中合金钢
D.低碳钢
参考答案:A
Whitney Houston’s sudden death suggests that drug abuse is such a serious problem ___________ we should deal with properly.
A.as
B.that
C.which
D.where
在城乡规划体系中,控制性详细规划和修建性详细规划同属于()。
A.城镇体系规划
B.城市规划
C.乡规划
D.镇规划
E.村庄规划