________  was that the building there stayed up in the heavy earthquake. [ ]

A. To our surprise

B. We are surprised

C. What it was surprised

D. What surprised us

一般项目的质量应经抽样检验合格；当采用计数检验时，除有专门要求外，一般项目的合格点率应达到（）及以上，且不合格点的最大偏差值不得大于规定允许偏差值的（）倍。

A.70%1．0

B.80%1．5

C.70%1．5

D.80%1．0