我国的《公路沥青路面再生技术规范》建议水泥等活性填料一般不超过()
A.1%
B.1.5%
C.2%
D.2.5%
参考答案:B
钢材有下列情形时(),经过检验或者适当处理后仍能做受力钢筋。
A.表面浮锈
B.起皮裂缝
C.屈服强度不合格
D.弯起钢筋敲直
A computer generates non-zero numbers for the figure above so that the product of the numbers along any vertical column is equal to the product of the numbers in any horizontal row. What number does 8 represent ?()
(1)u equals 6.
(2)t equals 2.
A.条件(1)充分,但条件(2)不充分.
B.条件(2)充分,但条件(1)不充分.
C.条件(1)和(2)单独都不充分,但条件(1)和条件(2)联合起来充分.
D.条件(1)充分,条件(2)也充分.
E.条件(1)和条件(2)单独都不充分,条件(1)和条件(2)联合起来也不充分.