—I’d like to invite you to dinner this Saturday, Mr. White.

—           .

A．Oh, no. let’s not

B．I’d rather stay at home.

C．Oh, no. That’ll be too much trouble.

D．I’m sorry, but I have other plans.

下列不是高钙血症常见原因的是（）

A.肾对钙重吸收增加

B.钙溢出进入细胞外液

C.原发性甲状旁腺功能亢进

D.维生素D缺乏

E.肠道吸收钙增加