Since I bought the book two weeks ago, I ______ hardly ______ time to open it, just because of the research paper.

A．have; had

B．did; have

C．have; any

D．had; any

以下各组表示卤素及其化合物的性质变化规律中，错误的是（　　）

A．氧化性：F₂＞Cl₂＞Br₂＞I₂

B．还原性：Fˉ＞Clˉ＞Brˉ＞Iˉ

C．稳定性：HF＞HCl＞HBr＞HI

D．酸性：HF＞HCl＞HBr＞HI