小区种植鉴定株数一般根据下列哪项来确定？（） ["品种纯度标准","作物种类","品种类型","栽培管理条件"]
Your company has a main office and 15 branch offices. The company has a single Active Directory domain. All servers run Windows Server 2008 R2.You need to ensure that the VPN connections between the main office and the branch offices meet the following requirements: ¡¤All data must be encrypted by using en-to-end encryption. ¡¤The VPN connection must use compute-level authentication. ¡¤User names and passwords cannot be used for authentication What should you do？（） [" Configure an IPsec connection to use tunnel mode and preshared key authentication."," Configure a PPTP connection to use version 2 of the MS-CHAP v2 authentication."," Configure a L2TP\/IPsec connection to use the EAP-TLS authentication."," Configure a L2TP\/IPsec connection to use version 2 of the MS-CHAP v2 authentication."]
圆锥台表面积为（）分之π乘以圆锥台斜高再乘以大圆外径加小圆外径之和。 ["5","2d","2π","2"]
危险作业的现场监护管理应根据危险作业的特点来制定，应使（），确保作业按操作规程进行和安全措施的落实。 ["作业程序规范化","设备与工具使用规范化","作业（施工）现场规范化","作业程序规范化、设备与工具使用规范化、作业（施工）现场规范化"]
一氧化碳的“攻击性”很强，空气中含（）%或以上浓度，就会很快进入血流，造成危害。 ["0.01~0.03","0.04~0.06","0.07~0.09","0.10~0.12"]
酶反应器与化学反应器和发酵罐有何区别？
