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I've been a doctor( ) 1989.
A.in
B.since
C.for
D.from
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更多 “ I've been a doctor( ) 1989. A.inB.sinceC.forD.from ” 相关考题
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– Is there anything serious, doctor? – ( ).
A、I'm going to have another check-upB、The results of the blood test are wrongC、No. Just stay in bed and drink more waterD、Yes. You can go home tomorrow
考题
根据下列材料请回答 56～60 题：Sound pull can feel eatDoctor：What’S wrong with you?Emma：Oh，I have a toothache now．Doctor：How long have you56 like this?Emma：For three days．And I57 not sleep last night．Doctor：Open your mouth and let me look them over．Oh，one of your teeth is bad．It must be 58 0ut．Emma：It59 terrible．You’d better give me other advice．Perhaps it will be OK tomorrow．Doctor：I don’t think so．Emma：All fight．What should I do?Doctor：You won’t60 anything hard in many days after the operation(手术)．Emma：OK．Thank you very much．Doctor．Not at all．第 56 题 请在（56）处填上最佳答案。
考题
—What’s wrong with me, doctor? I feel quite bad.—_______A.I don’t know.B.Let me treat you some whisky.C.I’m not sure. Let’s take your temperature.D.You are a little overweight.
考题
I've _____ these lines again and again but I still keep forgetting them.A. gone offB. gone aboutC. gone overD. gone through
考题
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;
考题
―――I feel sick，doctor．――＿＿＿＿．
―――I'm not sure，but I have got a bad headache．A.How long have you been sick?
B.I'm sorry to hear tha
C.How are you feeling now?
D.Do you have a fever?
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