沥青路面面层的主要作用是()。
A．承受行车荷载
B．防冻、防湿
C．排水、隔水
D．防污、防渗
参考答案：A
Tom misses his brother very much and he is looking forward ____ him. [ ]
A. to hear from
B. hearing from
C. to hearing from
D. heard from
