( )水泥,由硅酸盐酸水泥熟料、20%~70%的粒化高炉渣和适量石膏组成。
A.硅酸盐
B.普通硅酸盐
C.矿渣硅酸盐
D.火山灰质硅酸盐
参考答案:C
He is believed to be one of the best _____ composers. Although old, he is very much ____ and he can give a ______ description of what happened.
A.living, alive, lively
B.live, lively, alive
C.alive, live, living
D.lively, living, alive
新中国实行的既能体现民族平等,又能保证祖国的统一和民族团结的政治制度:
A.民主改革
B.和平共处
C.政治协商
D.民族区域自治