经济管理者的统筹性作用要求其对经济管理在空间和时间上全面考虑，也就是坚持（）的观点。 ["普遍联系","质量互变","矛盾","联系和发展"]
物联网中的M2M涉及的关键技术包括（） ["传感器及其网络技术","通信网络技术","专用芯片、模块、终端技术","M2M平台技术"]
西餐宴会用酒较多，几乎每道菜跟有一种酒，吃什么菜配什么酒，应先（）后（）。
You are using Recovery Manager (RMAN) with a recovery catalog to back up your production database. The backups and the archived redo log files are copied to a tape drive on a daily basis. Because of media failure, you lost your production database completely along with the recovery catalog database. You want to recover the target database and make it functional. You consider performing the following steps to accomplish the task: Which option illustrates the correct sequence that you must use?（） [" 8, 1, 3, 2, 4, 5, 7, 6"," 1, 8, 3, 4, 2, 5, 7, 6"," 1, 3, 4, 2, 8, 5, 6, 7"," 1, 3, 2, 4, 6, 5, 7, 8"]
在建设工程施工合同纠纷案件中，如因发包方的原因导致工程窝工，在计算施工方的实际经济损失时，如合同中有约定的，从其约定；没有约定且协商不成的，一般应通过司法鉴定的方式解决。
什么是社会问题？联系实际，分析一个当代社会问题的特点与危害性。
