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A:Have you sent the fax to the travel agent?
B:_____
A.Yes,I have
B.Yes，I do
C.Yes. I've done
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更多 “ A:Have you sent the fax to the travel agent?B:_____A.Yes,I haveB.Yes，I doC.Yes. I've done ” 相关考题
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Kathy, I’d like you to meet Maggie Jacobs.(). Maggie. You’re doing a great job.A、 I‘m pleased to meet youB、 It’s great to see you againC、 I' m happy to meet you too
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What can I do for you, Madam?()500yuan in cash to my son in Beijing University.A、 You’d better remitB、 I'd like to remitC、 I'd rather remit
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Would you like to come to our party this weekend?().A. Yes, I had great fun at the partyB. No, I’d like to at tend the partyC. I’m sorry that I won’t be able to attend the party
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－ It's really a good dinner, isn't it? － _______________________
A. Yes, I'd like to go.B. Yes, the food is just wonderful.C. I'm glad to hear that.D. It's very nice of you to say so.
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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;
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