半主动悬架不考虑改变悬架的刚度，而只改变阻尼。（）
参考答案：对
我国实施的重大工程“西气东输”中所说的“气”指的是[ ]
A．天然气
B．液化石油气
C．水煤气
D．氨气
Those areas rely on agriculture almost (), having few mineral resources and a minimum of industrial development.
A. respectively
B. exclusively
C. incredibly
D. extraordinarily
