风管下料时，应计算适宜的样板展开长度，圆管样板展开长度等于管道外直径加样板材料的厚度得出的长度乘以π。( )
参考答案：对
—Could I borrow_____ money from you?
—Sorry, I don't have_____ on me. [ ]
A. some; some
B. any; any
C. some; any
D. any; some
脾的功能异常，痰聚肉里可形成
A．气瘤
B．血瘤
C．筋瘤
D．肉瘤
E．骨瘤
