对于多跨厂房，当跨度不变时，（）越多越经济。
A.边跨
B.单跨
C.多跨
D.中跨
参考答案：D
公开选拔笔试分为哪两种科目的考试？采用何种方式进行？
This restaurant has become popular for its wide _____ of foods that suit all tastes and pockets. [ ]
A. division
B. area
C. range
D. circle
