()在建筑结构中主要承受拉力、压力、弯曲、冲击等外力作用,但是在施工中还经常对它进行冷弯或焊接等加工工艺。
A.水泥
B.骨料
C.钢材
D.混凝土
参考答案:C
35. —Mum, can I listen to music while doing homework?
— Don’t even think about it._____.
A.The more you get, the more you want
B.Eye for eye and tooth for tooth.
C.A man cannot whistle and drink at the same time.
D.A bad beginning makes a bad ending
砌石可分为()。