I've been trying that ___________ all my customers today. A. withB. toC. onD. at
I've been trying that ___________ all my customers today.
A. with
B. to
C. on
D. at
相关考题：
Using "I" or "My' instead of "most people" or "our group" ______ message credibility.A decreasesB increasesC has no effect onD distortsE A and B
I, my, will, true, come, hope, dream__________________________________________________________________________.
I've _____ these lines again and again but I still keep forgetting them.A. gone offB. gone aboutC. gone overD. gone through
B 宽度优先（种子染色法）5．关键路径几个定义： 顶点1为源点，n为汇点。a. 顶点事件最早发生时间Ve[j], Ve [j] = max{ Ve [j] + w[I,j] },其中Ve (1) = 0;b. 顶点事件最晚发生时间 Vl[j], Vl [j] = min{ Vl[j] – w[I,j] },其中 Vl(n) = Ve(n);c. 边活动最早开始时间 Ee[I], 若边I由j,k表示，则Ee[I] = Ve[j];d. 边活动最晚开始时间 El[I], 若边I由j,k表示，则El[I] = Vl[k] – w[j,k];若 Ee[j] = El[j] ，则活动j为关键活动，由关键活动组成的路径为关键路径。求解方法：a. 从源点起topsort,判断是否有回路并计算Ve;
按行优先顺序存储下三角矩阵的非零元素，则计算非零元素a/subij1≤j≤i≤n)的地址的公式为A．LOC(aij)=LOC(all)+i×(i+1)/2+jB．LOC(aij)=LOC(all)+i×(i+1)/2+(j-1)C．LOC(aij)=LOC(all)+i×(i-1)/2+jD．LOC(aij)=LOC(all)+i×(i-1)/2+(j-1)
下面vb6.0中tagname,name,value有什么区别呀? webbrowser1.document.all(i).tagnamewebbrowser1.document.all(i).namewebbrowser1.document.all(i).value
约占小儿ALL的80%-90%的是A．B-ALLB．T-ALLC．My+-ALLD．前B-ALL