—Do you think there is going to be a car that can run in the sea?

— ______. I think we can go to America by car.[ ]

    A. I'm afraid not                            

    B. Yes, there is going to be

    C. I hope not                                

    D. I think possible

在其它条件一定时，通过料层的风量越大则烧结速度越（）。

A、快

B、慢

C、无影响