循环水系统中水垢的控制方法有哪些？
参考答案：①从冷却水中除去成垢离子。
②加酸或通入CO2气降低PH值稳定重碳酸盐。
③投加阻垢剂。
根据首字母和汉语提示写出单词的正确形式，每空只填一词。
小题1:He ________ (主张) building more schools.
小题2:Our teacher has been ___________ (晋升)to headmaster.
小题3:One of her fellow passengers came to her a____________ when she was in trouble.
小题4:He was given a r________ of 1000 dollars for catching the criminal.
小题5:Her English accent is so good that you would think she is a n__________ speaker.
处理休克的根本措施是
A．扩容疗法B．消除病因C．纠正电解质紊乱D．防止肾衰E．纠正酸中毒
