掺高效减水剂混凝土的收缩率比不大于()
A.100%
B.110%
C.125%
D.135%
参考答案:D
A new school _____ in our city last year. [ ]
A. built
B. was built
C. has built
D. is building
台北建一府三县,即在台北府的管辖下,新设置了()三县。
A.淡水
B.新竹
C.宜兰
D.高雄