空气压缩机是机械能转化为空气的压力能的气压装置.
参考答案：对
分解因式：
（1）4x2﹣16
（2）4ab2﹣4a2b﹣b3
Most people are _____ bringing down the price of housing because it's too high for them. [ ]
A. in favor of
B. in honor of
C. in search of
D. in charge of
