My suggestion is that    tomorrow.

A．Torn will be taken to Beijing

B．Torn is going to Beijing

C．Tom is to leave for Beijing

D．Tom be taken to Beijing with us

预制管铺设管道的现场浇筑混凝土基础强度，接口抹带或预制构件现场装配的接缝水泥砂浆强度( )。

A．不应大于5MPa

B．不应小于5MPa

C．不应大于0.5MPa

D．不应小于0.5MPa