缢索按其质地性质可分为（）、（）和（）三种。
“四议两公开”即“4+2”工作法，即农村所有村级重大事项都必须在村党组织领导下，按照“四议”、“两公开”的程序决策实施，“四议”是指：（）、（）、（）、（）；“两公开”是指：（）、（）。
盛装易燃易爆介质的压力容器，可以用以下何种气体或液体进行置换（） ["氦气","空气","氮气","氧气"]
泥浆护壁法钻孔灌注桩第二次清孔施工工艺应在（）之后进行。 ["护筒埋设","下钢筋笼和钢导管","浇筑水下混凝土","质量验收"]
Squeaky Beans Inc. hired an outside consultant to develop their web application. To finish the job quickly，the consultant created several dozen JSP pages that directly communicate with the database. The Squeakybusiness team has since purchased a set of business objects to model their system， and the Squeaky developer charged with maintaining the web application must now refactor all the JSPs to work with the newsystem. Which pattern can the developer use to solve this problem？（） ["Transfer Object","Service Locator","Intercepting Filter","Business Delegate"]
什么是变压器的过负荷能力？
