在进行假面砖工艺时，要待面层砂浆稍收水后，先用（）沿靠尺由上向下划纹，深度控制在1～2mm为宜。
A．胶粘梳
B．抹子
C．铁梳子
D．油灰刀
参考答案：C
Why don't you put the meat in the fridge? It will _____ fresh for several days. [ ]
A. be stayed
B. stay
C. be staying
D. have stayed
什么是“四超”设备材料？
