On hearing the news, she rushed out without hesitation,       her handbag         on the sofa and         in the distance.

A．left; lied; disappeared

B．leaving; lying; disappeared

C．leaving; laying; disappeared

D．left; lying; disappearing

下列说法正确的是[ ]

A. 用甘氨酸（）和丙氨酸（）缩合最多可形成4种二肽

B. 0.1 mol/L Na₂S溶液中：c（OH^-）= c（H⁺）+ c（HS^-）+ c（H₂S）

C. 标准状况下，2.24L己烷含有分子的数目为0.1N_A

D. 由离子方程式+ XO₃^- + 6H⁺ == 3X₂ + 3H₂O可判断X元素的最高化合价为+5价