为了使制动器的结构尺寸减小，往往把它设计安装在系统的低速轴上。
参考答案：对
All of us feel surprised that _____ a little boy can eat _____ much food. [ ]
A. so; such
B. such; such
C. so; so
D. such; so
水玻璃的硬化有何特点？
