热工系统中压力表的存水弯管可以积存冷凝水，使锅炉内高温蒸汽不直接与弹簧弯管接触，可以防止表内零件损坏，或压力表失灵。
参考答案：对
More public kindergartens preschool kids can spend their fun-filled childhood will be built this year.
A．to which
B．with whom
C．in which
D．from where
什么是防洪工程经济效益？主要包括哪些方面？
