立方体抗压强度标准值
参考答案:
以边长为150mm的立方体,在温度为(20±3)℃、相对湿度不小于90%的条件下养护28d,用标准试验方法测得的抗压强度,用fcuk表示。
I thought things would get better, but _____it is they are getting worse.
A.before
B.because
C.as
D.after
扁平人物