—Would you like to go to see the basketball match this evening?       

—I'd like to, ______ I have to stay at home playing the piano.       [ ]

A. and

B. but

C. so

D. because

下列叙述错误的是（　　）

A．晶体硅可用于制造太阳能电池

B．氢氟酸保存在棕色玻璃试剂瓶中

C．陶瓷、玻璃、水泥等都是硅酸盐产品

D．硅元素在自然界以SiO₂及硅酸盐的形式存在