不分区给水方式即整幢高层建筑采用一个区供水，它是高层建筑给水方式中最简单、最基本的一种。()

A. however
B. moreover
C. therefore
D. furthermore

A. Beforehand
B. Initially
C. Eventually
D. Similarly

A. already
B. forever
C. hardly
D. long

A. influences
B. underlines
C. endangers
D. accelerates