附加制动器
参考答案：
当自动扶梯提升高度超过一定值时，或在公共交通用自动扶梯和自动人行道上，增设的一种制动器。
____ , people in the north have noodles as their main food while thesoutherners are fond of rice in China. [ ]
A. In common
B. In general
C. In total
D. In return
该招待所的纳税调整项目合计金额为( )万元。
A．2
B．8.12
C．12.28
D．15.21
