液压支架按架型结构及与围岩关系分，可分为。（） ["掩护式支架","支撑式支架","支撑掩护式支架","放顶煤支架"]
开放式基金是目前国际上的主流基金组织形式。
根据《治安管理处罚法》规定，应当减轻处罚的情形包括（）。 ["有立功表现的","初次违反治安管理的","由于他人教唆的","态度较好的"]
植皮患者供皮区护理操作要点不正确的是：（） ["观察伤口及辅料固定和伸出情况","有渗液或者渗血时，及时更换辅料","伤口加压包扎时，观察肢端血供","伤口有臭味、分泌物多，及时报告医生","E伤口疼痛时积极给予对症处理"]
What feature does the Partner E-Learning Connection provide?（） [" Lists of training-partner class offerings"," Hosted website that partners use to deliver e-learning to customers"," Full versions of all Cisco technical-level classes"," Flexibility, web-based knowledge and learning"," Live instructor-led, web-based classe"]
解释滑移和孪生的概念及其特征，滑移和孪生的异同点。
