You should return the digital camera to Sally _____she will not be angry.      [ ]

A. so that                    

B. because      

C. before                    

D. so as

孕期膳食中可能缺乏的矿物质主要是（）

A.钙、磷、铁

B.钙、铁、镁

C.锌、铁、钙

D.铁、铜、钙

E.硒、碘、钙