施工时，先在槽内刷一层（），然后将沥青砂浆倒入槽内，立即用专用工具摊平压实。
A、水泥浆
B、沥青砂浆
C、沥青
D、石灰浆
参考答案：C
The theme of the painting is too ______ for the audience to understand.[ ]
A. realistic
B. abstract
C. truly
D. clearly
It takes a long time to _____ a good name, but this name is quickly lost by just one piece of bad behavior.
A．pick up
B．think up
C．build up
D．make up
