Our school prohibits ________ out of school without wearing the school brand, and we are allowed

________school clothes every day.[ ]

A. to go; to wear      

B. going; wearing      

C. to go; wearing        

D. going; to wear

为了避免夏季流淌，一般屋面用石油沥青的软化点应比当地屋面最高温度高（）℃以上。

A、5

B、10

C、20

D、30