某申请人于2002年1月31日申请签发一笔银行汇票，该汇票提示付款期的到期日为（）。 2月9日。 2月10日。 2月21日。 2月28日。 3月1日。
Squeaky Beans Inc. hired an outside consultant to develop their web application. To finish the job quickly， the consultant created several dozen JSP pages that directly communicate with the database. The Squeaky business team has since purchased a set of business objects to model their system， and the Squeaky developer charged with maintaining the web application must now refactor all the JSPs to work with the new system. Which pattern can the developer use to solve this problem？（） Transfer Object。 Service Locator。 Intercepting Filter。 Business Delegate。
特异投射系统
试简述永磁同步直驱式风力发电机组的特点及工作原理。
An enterprise has plans to start adding IPv6 support. The initial deployment requires support from some IPv6 - only device s that need to access servers that support only IPv4. Which of the following tools would be most appropriate?（） Native IPv6。 Point - to -point tunnels。 Multipoint tunnels。 NAT - PT。
下列说法正确的是（）。
