---Will you come over to my home next Sunday?

---__________.I will be on business in Shanghai.

A  I’d like to  B I don’t think so  C I’m afraid so  D I’m afraid I can’t

下列不属于盲人读物准寄范围的是（）。

A、盲人交寄的书籍

B、盲人所用凸出点痕的刊物

C、盲人所用凸出点痕的信函

D、盲人所用凸出点痕的文件