There _____ a hotel, a school, a post office and two markets on this street.[ ]

A. is    

B. are    

C. have    

D. has

TOSI锅炉29—V1一T型空气预热器备用驱动电动机的汽源压力为（）MPa，气源流量为（）mm／min，转速为（）r／min。