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【多选题】
设发送端符号为X:x1=0,x2=1;接收端符号为Y:y1=0,y2=1;已知P(x1)=0.55, P(x2)=0.45; P(y1|x1)=P(y2|x2)=0.9, P(y2|x1)=P(y1|x2)=0.1;则下列计算与判断正确的是( )。A.
P(y1)=P(x1)P(y1|x1)+P(x2)P(y1|x2)=0.55*0.9+0.45*0.1=0.54
B.
P(y2)=P(x1)P(y2|x1)+P(x2)P(y2|x2)=0.55*0.1+0.45*0.9=0.46
C.
P(x1,y1)=P(x1)P(y1|x1)=0.55*0.9=0.495； P(x1|y1)=P(x1,y1)/P(y1)=0.495/0.54=0.917
D.
P(x1,y2)=P(x1)P(y2|x1)=0.55*0.1=0.055; P(x1|y2)=P(x1,y2)/P(y2)=0.055/0.46=0.12
E.
P(x2,y1)=P(x2)P(y1|x2)=0.45*0.1=0.045; P(x2|y1)=P(x2,y1)/P(y1)=0.045/0.54=0.083
F.
P(x2,y2)=P(x2)P(y2|x2)=0.45*0.9=0.405; P(x2|y2)=P(x2,y2)/P(y2)=0.405/0.46=0.88
G.
P(x2|y1)≠P(x1|y2)，P(x1|y1)≠P(x2|y2)，所以该信道不是对称信道。
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A.
偿还了亚洲开发银行的贷款后,当地政府力求教导农民如何依靠农业技术成功地进行生产。
B.
为了偿还亚洲开发银行的贷款,当地政府努力教导农民如何成功地利用农业技术。
C.
为了获取亚洲开发银行的贷款,当地政府教导农民如何通过发展农业技术来办好农业。
D.
在亚洲开发银行贷款的支持下,当地政府致力于教会农民如何用农业技术成功地经营。
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A.
为了偿还亚洲开发银行的贷款,当地政府努力教导农民如何成功地利用农业技术。
B.
为了获取亚洲开发银行的贷款,当地政府教导农民如何通过发展农业技术来办好农业。
C.
偿还了亚洲开发银行的贷款后,当地政府力求教导农民如何依靠农业技术成功地进行生产。
D.
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A.
为了偿还亚洲开发银行的贷款，当地政府努力教导农民如何成功的利用农业技术。
B.
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A.
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B.
Ensure that the stored procedure and the tables are owned by the same database user.
C.
Ensure that the stored procedure and the tables use the same database schema.
D.
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E.
Configure the cross-database ownership chaining option on both databases.
【单选题】Which of the following tools for DB2 V9 allows a user to create and debug a SQL stored procedure?（）
A.
Control Center
B.
Development Center
C.
Developer Workbench
D.
Stored Procedure Builder
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