答案：D
Since teaching is a job no one can be perfect at, it is necessary for teachers to keep improving their knowledge of the subjects they teach and their ______.
符合以下（）情况的建（构）筑物应设消防水池。
A、在市政给水管道、进水管道或天然水源不能满足消防用水量，
B、当市政给水管道为枝状或只有一条进水管的情况下
C、室内外消防用水量之和大于25L/s
D、高层建筑
