新《安全生产法》于哪次会议通过，自何时起施行，共多少章多少条？
中华人民共和国国务院令第650号《医疗器械监督管理条例》于（）起施行。
海绵陨铁结构：
下列说法正确的是（） ["搅拌罐式反应器酶与底物分两次加入","鼓泡式反应器反应过程中有气体参与或产生","固定床式反应器可用于固定化酶或游离酶","流化床式反应器适用于较大颗粒固定化酶","以上都不是"]
Your company has an Active Directory domain. The company has two domain controllers named DC1 and DC2. DC1 holds the schema master role. DC1 fails. You log on to Active Directory by using the administrator account. You are not able to transfer the schema master role. You need to ensure that DC2 holds the schema master role. What should you do（） ["Register the Schmmgmt.dll. Start the Active Directory Schema snap-in.","Configure DC2 as a bridgehead server.","On DC2， seize the schema master role.","Log off and log on again to Active Directory by using an account that is a member of the Schema Admins group. Start the Active Directory Schema snap-in."]
经营杠杆
