普通砖砌筑的灰缝宽度一般为()。
A、2-5mm
B、5mm
C、10mm
D、10-20mm
参考答案:C
用所给词的适当形式填空
1. She doesn't want _________(help) you at all.
2. Let's_________(look)at this map.
3. It ___________(take) me two hours to finish my homework every day.
4. It's necessary for me _________(wash) my clothes.
5. Please__________(tell) him _______(come) to the hospital.