在现浇混凝土结构施工过程中,为了克服由于温度、收缩不均而可能产生有害裂缝而设置的临时施工缝隙，称为()。

A.施工缝

B.变形缝

C.后浇带

D.沉降缝

You'd better take something to read when you go to see the doctor ________ you have to wait.[ ]

A．even if  

B．as if

C．in case  

D．in order that