关于地球形状的说法,正确的是[ ]
A.不规则的球体
B.大地如覆盖
C.天圆地方
D.地方如棋局
答案:A
____ much we dislike the idea of begging in the street, we should still show consideration
for those who are in difficult situations. [ ]
A. However
B. How
C. Whatever
D. No matter
根据现行《火灾自动报警系统设计规范》,消防控制设备对常开防火门的控制应符合下列要求:防火门的关闭信号应送至()
A.服务台
B.配电室
C.值班室
D.消防控制室