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详细的时间序列设计具体模式是()
A、S(X-O)B、S(O1-O2-O3-X-O4-O5-O6)C、S1(O1-X-O2)S2(O3--O4)D、S1(X1-O1-X2-O2-X3-O3);S2(X1-O4-X2-O5-X3-O6);S3(X1-O7-X2-O8-X3-O9)
考题
不等控制组设计的基本模式是()
A、S(X-O)B、S(O1-O2-O3-X-O4-O5-O6)C、S1(O1-X-O2)S2(O3--O4)D、S1(X1-O1-X2-O2-X3-O3);S2(X1-O4-X2-O5-X3-O6);S3(X1-O7-X2-O8-X3-O9)
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美国心理学家WoodWorth提出的行为表示式“S-O-R”分别指A、S-see,O-organize,R-respondB、S-sense,O-organize,R-reactC、S-stimulus,O-organism,R-reactionD、S-stimulate,O-organize,R-respondE、S-sensory,O-organism,R-response
考题
固定组比较设计是按照自然组确定两组被试,将其中一组实验处理,实验处理结束时,对两个组都要进行后测验。设计模式为()
A、S(X-O)B、S(O1-X-O2)C、S(O1-X1-O2)-(O3-X2-O4)D、S1(X-O)S2(O)
考题
美国心理学家WoodWorth提出的行为表示式“S-O-R”分别指A.S-see,O-organize,R-respond
B.S-sense,O-organize,R-react
C.S-stimulus,O-organism,R-reaction
D.S-stimulate,O-organize,R-respond
E.S-sensory,O-organism,R-response
考题
在图示机构中,杆O1A =O2B,O1A//O2B,杆O2C =杆O3D,O2C//O3D, 且O1A = 20cm,O2C = 40cm,若杆O1A以角速度ω=3 rad/s匀速转动,则杆CD上任意点M速度及加速度的大小为:
A. 60 cm/s; 180 cm/s2
B. 120 cm/s;360 cm/s2
C. 90 cm/s;270 cm/s2
D. 120 cm/s;150 cm/s2
考题
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.AgentNameB、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.AgentNameC、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)=2000D、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
考题
已知:4Fe(s)+3O22Fe2O3(s);△G=-1480kJ·mol-1 4Fe2O3(s)+Fe(s)3Fe3O(s);△G=-80kJ·mol-1 则△G(Fe3O,s)的值是()kJ·mol-1A、-1013B、-3040C、3040D、1013
考题
同温同压条件下,按熵值递增次序排列正确的()A、H2O(l) H2O(g) H2O(s)B、Cl2(l) Br2 (l) I2(s)C、Na(s) NaCl(s) CaCl2(s)D、O3(g) O2(g) O(g)
考题
MgO的晶格能是()A、Mg(s)+1/2O2(g)=MgO(s) -ΔrHØm(1)B、2Mg(s)+O2(g)=2MgO(s) -ΔrHØm(2)C、Mg(g)+1/2O2(g)=MgO(s) -ΔrHØm(3)D、Mg2+(g)+O2(g)=MgO(s) -ΔrHØm(4)
考题
你工作在一个售书公司.你正在基于SQL SERVER 2005数据库创建一个报表。此报表显示本月超过销售配额的销售代表及他们的销售额 。已知,销售配额为$2,000。查询的起始日期和截至日期以变量@FromDate 和 @ToDate 传递进来。为了实现满足上述条件的报表,你应该使用下面哪一个SQL查询语句?()A、SELECT s.AgentName,SUM(ISNULL(o.OrderTotal,0.00))AS SumOrderTotal FROM SalesAgent s JOIN OrderHeader o ON s.AgentID = o.AgentIDWHERE o.OrderDate BETWEEN @FromDate AND @ToDate GROUP BY s.AgentNameB、SELECT s.AgentName,SUM(ISNULL (o.OrderTotal,0.00))AS SumOrderTotal FROM SalesAgent s JOIN OrderHeader o ON s.AgentID = o.AgentIDWHERE o.OrderDate BETWEEN @FromDate AND @ToDate AND o.OrderTotal = 2000 GROUP BY s.AgentNameC、SELECT s.AgentName, SUM(ISNULL (o.OrderTotal,0.00))AS SumOrderTotal FROM SalesAgent s JOIN OrderHeader o ON s.AgentID = o.AgentID WHERE o.OrderDate BETWEEN @FromDate AND @ToDateGROUP BY s.AgentNameHAVING SUM(o.OrderTotal) = 2000D、SELECT s.AgentName,SUM(ISNULL(o.OrderTotal,0.00))AS SumOrderTotal FROM SalesAgent s JOIN OrderHeader o ON s.AgentID=o.AgentIDWHERE o.ordertotal =2000 AND o.OrderDate BETWEEN @FromDate AND @ToDate GROUP BY s.AgentName HAVING SUM(o.OrderTotal)= 2000
考题
Na2CO3(s)与H2O(l)可生成Na2CO3(s)·H2O(s)、Na2CO3(s)·7H2O(s)、Na2CO3(s)·10H2O(s),则30℃时,与Na2CO3水溶液、冰平衡共存的水合物最多有()种。
考题
20kV系统主变进线及分段断路器的额定操作循环为()。A、O-0.3s-CO-130s-COB、O-0.5s-CO-150s-COC、O-0.5s-CO-180s-COD、O-180s-CO-180s-CO
考题
在273K,200kPa时,H2O(l)的化学势为μ(H2O,l),H2O(s)的化学势为μ(H2O,s),两者的大小关系为()。A、μ(H2O,l)μ(H2O,s)B、μ(H2O,l)=μ(H2O,s)C、μ(H2O,l)μ(H2O,s)D、无法比较
考题
盐AB(s)与H2O可以形成以下几种稳定水合物:AB.H2O(s),2AB.5H2O(s),2AB.7H2O(s)和AB.6H2O(s),这个盐水体系的组分数为(),有()个低共熔点,最多可有()相同时共存。
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