从温州寄往海口的EMS，重1000克，保价200元，邮件资费为（）。
A.29元
B.31元
C.22元
D.21.5元
参考答案：A
(20) is NOT a concept of White Box Testing.
A. You should execute all logical decisions on their tree and false sides.B. You should execute all independent paths within a module at least once.C. You should execute all loops at their boundary conditions.D. You should execute all interfaces at their boundary conditions.
什么是森林生态系统经营？
