为了避免砌体施工时可能出现的高度偏差，最有效的措施是准确绘制和（）。
参考答案：正确树立皮数杆
看一看，答一答。
1. Tom: How many shirts do you want, Betty?
Betty: __________________________________________________________________
2. Tom: How many umbrellas do you want, Betty?
3. Tom: How many bikes do you want, Betty?
4. Betty: How many teddy bears do you want, Tom?
Tom: __________________________________________________________________
5. Betty: How many carrots do you want, Tom?
某正常生产的注水井瞬时水量为0.06m3/min，该井折算日注水量为（）m3。
A、84
B、85
C、86
D、86.4
