浆砌块石的砌缝宽度不大于30mm,上下层的竖缝错开距离不小于()mm。
A.50
B.70
C.80
参考答案:C
To our great surprise, the painting _______ should have won the prize.
A.considered being copied
B.considering to be copied
C.considering having been copied
D.considered to have been copied
下列属于古代西方文明成就的是[ ]
A.金字塔
B.阿拉伯数字
C.《汉谟拉比法典》
D.《荷马史诗》