There's something wrong ______ Gina and Greg. They haven't talked to each other for over one month. [ ]

A. beside

B. between

C. during

D. under

混凝土路面板的构造措施，都是为了最大限度发挥其( )特点，使路面能承受车轮荷载，保证行车平顺。

A．脆性

B．抗滑性

C．耐久性

D．刚性