以下属于海信E350功能的是（）
A.听音乐
B.移动QQ
C.手机免提
D.内置导航软件
参考答案：A, B, C
What is even more important is_____ the earth cooled down, water began to appear on its surface.
A．that
B．that as
C．which
D．which as
以下IP地址中，属于B类地址的是 (29) 。
A．125.16.0.1
B．76.112.81.2
C．172.16.3.108
D．202.112.84.1
