在世界贸易组织第四届部长级会议上，会议主席手中的击锤一落，标志着中国复关和加入WTO的进程结束，为了这一时刻，我国进行了长达多少年的不懈努力？
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A potential new customer needs servers and requests a response to their hardware specifications， which are all related to hardware speeds， disk， and memory configuration. The customer requests a quote within 48 hours. Which of the following should the System x Sales Specialist do to MAXIMIZE the odds of winning this business？ （）
A. Request an extension because 48 hours will not be enough time to propose an appropriate solution.
B. Ask the customer for a call to learn more about their needs and respond to their request with a complete solution.
C. Use the configuration guide or spreadsheet configurator to assemble server configurations that meet the specification， and then look for the lowest price.
D. Contact the IBM Client Representative for this account and ask for assistance in setting up a meeting with the technical decision maker of the prospective customer.
如果F=－4.0DC×180，则其在60度方向上的屈光力为－3.0DC。
A. 正确
B. 错误
重特大事故预防，尤其是重大危险源的监控源头治本之策是（）
A. 土地使用的安全规划
B. 资金使用的部署规划
C. 安全规划教育培训
D. 政策的贯彻落实
柜员因故未能及时正常签退出系统，应及时查明原因，并且（）。
A. 必须由该清算中心柜员办理强制签退
B. 由该机构其他柜员办理强制签退
C. 强制签退应双人办理
D. 须经原柜员事后确认
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