锚链管是锚链进出锚链舱的通道，其直径约为链径的（）倍。
A. 3～4
B. 4～5
C. 5～6
D. 7～8
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A lookout can leave his station（）.
A. at the end of the watch
B. at any time
C. ONLY when properly relieved
D. 15 minutes before the end of the watch
组织、参加反对党的重大方针政策的集会、游行、示威等活动的策划者、组织者和骨干分子，给予（）处分。
A. 开除党籍
B. 留党察看
C. 撤销党内职务
D. 严重警告
You work for a company that sells books. You are creating a report for a SQL Server 2005 database. The report will list sales representatives and their total sales for the current month. The report must include only those sales representatives who met their sales quota for the current month. The monthly sales quota is $2，000. The date parameters are passed in variables named @FromDate and @ToDate. You need to create the report so that it meets these requirements. Which SQL query should you use？（）
A. SELECT s.AgentName,SUM（ISNULL（o.OrderTotal，0.00））AS SumOrderTotalFROM SalesAgents JOIN OrderHeader o ON s.AgentID=o.AgentIDWHERE o.OrderDate BETWEEN @FromDate AND @ToDateGROUP BY s.AgentName
B. SELECT s.AgentName， SUM（ISNULL （o.OrderTotal，0.00））AS SumOrderTotalFROM SalesAgent s JOIN OrderHeader o ON s.AgentID = o.AgentIDWHERE o.OrderDate BETWEEN @FromDate AND @ToDate AND o.OrderTotal >= 2000GROUP BY s.AgentName
C. SELECT s.AgentName， SUM（ISNULL （o.OrderTotal，0.00）） AS SumOrderTotalFROM SalesAgent s JOIN OrderHeader o ON s.AgentID=o.AgentID WHERE o.OrderDate BETWEEN @FromDate AND@ToDateGROUP BY s.AgentNameHAVING SUM（o.OrderTotal）>=2000
D. SELECT s.AgentName， SUM（ISNULL（o.OrderTotal，0.00）） AS SumOrderTotalFROM SalesAgent s JOIN OrderHeader o ON s.AgentID=o.AgentIDWHERE o.ordertotal=2000 AND o.OrderDate BETWEEN @FromDate AND @ToDateGROUP BY s.AgentNameHAVING SUM（o.OrderTotal） >= 2000
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