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【单选题】
以下中语句“x++”的语句频度为( )。 for(i=1;i<=n;i++) for(j=1;j<=i;j++) for(k=1;k<=j; k++) x++;A.
n(n+1)(2n+1)/2
B.
n(n+1)(n+1)/2
C.
n(n+1)(2n+1)/6
D.
n(n+1)(n+2)/6
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反馈参考答案：
举一反三
【简答题】报表作业1-5案例
【简答题】根据5-5案例提交网页代码。
【单选题】To their credit the Department of Energy ______ these ideas and funded a detailed study.
A.
took over
B.
took on
C.
took up
D.
took to
【单选题】To their credit ,the Department of Energy ____ their duty to conduct the project of saving non-renewable resources.
A.
took off
B.
took on
C.
took in
D.
took to
【单选题】To their credit the Department of Energy ____these ideas and funded a detailed study.
A.
took over
B.
took
C.
took up
D.
took to
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