题目内容

隔膜式计量泵注入加臭装置的优点是()。

A. 没有机械运动部件,维修工作量少,注入稳定
B. 计量罐处于受压状态,流量变化时,注入量的调节范围受限制
C. 计量泵注入量显示明显,单行程注入误差很小,计量罐为常压
D. 流量变化大,抗氧化性强、添加量较少

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下列关于早餐挂账服务的说法正确的是哪一项?()

A. 早餐挂账不仅给住店客人提供服务也提供给非住店客人提供服务
B. 配备电脑及PMS系统的餐厅内,餐厅服务员可以在餐厅直接进行挂账服务
C. 早餐结束后,餐厅应将《杂项收入转账单》与早餐券存根合订,交至前台
D. 早餐对客服务时,需要询问客人姓名、房号及余额,与前台核对后PMS入账

人力制动机()与()的平方以及车组总重量成正比。

调查评价不是安全性评价方法。

A. 正确
B. 错误

You have a VPN server that runs Windows Server 2003 Service Pack 2 (SP2). The VPN server supports only PPTP connections. A firewall protects the VPN server from the Internet. From a remote computer connected to the Internet, you attempt to connect to the VPN server. During the connection attempt, you receive a message that your user name and password are being verified. You then receive the following error message: “Error 721: The remote computer is not responding.”You need to ensure that you can establish a VPN connection to the VPN server from the Internet. What should you do?()

A. On the VPN server, enable LAN routing.
B. On the VPN server, create a demand-dial interface.
C. On the firewall, allow inbound connections that use TCP port 1701.
D. On the firewall, allow inbound connections that use Generic Route Encapsulation (GRE) protocol 47.

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