原脑皮
What are the three partner benefits of service contracts?（） ["produces higher margins than product sales along","generate recurring revenue","strengthens customer loyalty","renews automatically for the lifetime of the product","helps customers speed architectural planning and design"," eliminates network problem"]
焦炭塔超压，可打开（）泄压 ["呼吸阀","放空阀","塔壁阀","隔断阀"]
王先生，57岁，因进行性吞咽困难半年余，来医院检查，当医生告诉患者患食管癌需要手术治疗，患者听后，极度紧张恐惧，回家后不思饮食，休息睡眠欠佳。此时患者的主要护理问题为（） ["有体液不足的危险","清理呼吸道无效","营养失调：低于机体需要量","焦虑或恐惧","潜在并发症"]
粘性土料和非粘性土料填筑标准用什么指标控制？如何确定这些指标？
问题解决策略中，用一定的方法逐步降低初始状态和目标状态的距离，以达到问题解决的策略为（）
