城市公共汽车不得在站点以外的路段停车上下乘客。
参考答案:对
We live day by day, but in the great things, the time of days and weeks ________ so small
that a day is unimportant.[ ]
A.is
B.are
C.has been
D.have been
冷却水系统基本可分为密闭式循环冷却水系统和敞开式循环冷却水系统。