____语言的书写方式接近于人们的思维习惯，使程序更易阅读和理解。
参考答案：高级
Which is wrong?（）.
A.Dunnage is used to reduce broken space
B.Dunnage is used to benefit ventilation
C.Dunnage is used to segregate cargo
D.Dunnage is used to protect cargo
