Be calm, Madam, can you remember _____you had your mobile phone stolen?     [      ]

A. when was it that      

B. that it was when  

C. where it was that      

D. it was where that

水泥土搅拌桩复合地基质量验收时，（）抽查必须全部符合要求。

A.水泥及外掺剂质量

B.桩体强度

C.水泥用量

D.提升速度

E.桩体的密度