价值是如何分类的?

A. 可在蓝和黄系统间互相转换
B. 在绿和黄系统间互相转换
C. 可在绿和黄系统间互相转换
D. 可在所有三个系统间转换

A. light，variable winds with little or no humidity
B. strong，gusty winds that blow from the same general direction all year
C. steady winds that reverse direction semiannually
D. strong，cyclonic winds that change direction to conform to the passage of an extreme low pressure system

A. 正确
B. 错误