Adam: Mmm….. This is the best pudding I've ever had!
Celia:________ I know you'd like it.
A、Didn't't I tell you?
B、Did I say it right?
C、Is what I said right?
D、What did I say?
乳牙萌出的顺序为A.I→Ⅱ→Ⅳ→Ⅲ→VB.I→Ⅱ→Ⅲ→]V→VC.I→Ⅲ→Ⅱ→Ⅳ→VD.Ⅱ→I→Ⅲ→Ⅳ→VE.Ⅱ→I→Ⅳ→Ⅲ→V
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I _____my breakfast at 8, but_____ I lunch yet. .A. had, haven't hadB. had, didn't haveC. have had, didn't have
I _______ him study hard until he passes the exam.A.askB.madeC.letD.had
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
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
____ I?know,?there?isn’t?such?a?word?in?English.A、As much asB、So far asC、As long asD、As soon as
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由表示,则Ee[I] = Ve[j];d. 边活动最晚开始时间 El[I], 若边I由表示,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;