A line manager provides you with three estimates for his activity in your PERT network. His estimates are 2 weeks optimistically, 4 weeks mostlikely, and 12 weeks pessimistically. which would appear on the chart （ ） .A.4 weeks B.5 weeks C.6 weeks D.7 wee
题目
B.5 weeks
C.6 weeks
D.7 weeks
相似考题
更多“ A line manager provides you with three estimates for his activity in your PERT network. His estimates are 2 weeks optimistically, 4 weeks mostlikely, and 12 weeks pessimistically. which would appear”相关问题
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第1题：
Using the figure in the Special window, Activity "L" has an early start time of _____ weeks and an early finish time of _____ weeks.
A . 11, 13
B . 12, 14
C . 13, 15
D . 14, 16
E . 15, 17
正确答案：E
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第2题：
124 A line manager provides you with three estimates for his activity in your PERT network. His estimates are 2 weeks optimistically, 4 weeks most likely, and 12 weeks pessimistically. The expected time which would appear on the chart would be:
A. 4 weeks
B. 5 weeks
C. 6 weeks
D. 7 weeks
E. None of the above
正确答案：B
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第3题：
117 Using the figure in the Special window, Activity "L" has an early start time of _____ weeks and an early finish time of _____ weeks.
A. 11, 13
B. 12, 14
C. 13, 15
D. 14, 16
E. 15, 17
正确答案：E
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第4题：
2 Using the figure in the Special window, The slacktime in Activity "G" is _____ weeks.
A. 2
B. 3
C. 4
D. 5
E. 7
正确答案：C
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第5题：
I would rather __ two weeks earlier.A.you should come here
B.you come here
C.you must come
D.you came
参考答案：D
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第6题：
_______ another three weeks, I would have been able to finish the experiment.
A. Given
B. Giving
C. To give
D. Having given
正确答案：A
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第7题：
I would rather()two weeks earlier.
A. you should come here
B. you came here
C. you had come here
参考答案：A
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第8题：
The train()just three weeks() complete a journey that()six weeks by sea.
A. spent…on; takes in to
B. pay…for; takes on to
C. took…to; takes up to
参考答案：C
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第9题：
You and I shall get a ______ holiday of two and three weeks.A.respectful
B.respective
C.respectable
D.respecting答案：B解析：本题考查形近词辨析。题目意为“你和我将分别有两星期和三星期的假期。”A选项“恭敬的，有礼貌的”，B选项“分别的，各自的”，C选项“值得尊敬的”，D选项“关于，在……方面”。根据句意，应选择分别有假期。
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第10题：
单选题When did Jacky experience his ordeal?ALast Friday
B2 weeks ago
C3 weeks ago
正确答案： C解析：
根据Bessy的回答If I’m not mistaken, it was three weeks ago，Jacky表示同意，可见是三周前。 -
第11题：
单选题How long do the English courses last?A4 days.
B2 weeks.
C3 weeks.
D4 weeks.
正确答案： C解析：
根据第一段第二句“The courses last for 4 weeks”可知选D。 -
第12题：
单选题Final exams were incredibly comprehensive, and went on for two weeks, which length made it seem as if they would never end.Acomprehensive, and went on for two weeks, which length made
Bcomprehensive and since they went on for two weeks, that made
Ccomprehensive and, since they went on for two weeks, to make
Dcomprehensive and went on for two weeks, which made
Ecomprehensive and, by going on for two weeks, it made
正确答案： B解析：
原句中“which”的使用不正确。D项表意最清晰。E项中的“it”指代模糊。C项语法上不正确。 -
第13题：
A line manager provides you with three estimates for his activity in your PERT network. His estimates are 2 weeks optimistically, 4 weeks most likely, and 12 weeks pessimistically. The expected time which would appear on the chart would be:
A . 4 weeks
B . 5 weeks
C . 6 weeks
D . 7 weeks
E . None of the above.
正确答案：B
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第14题：
170 Assume that you have a network where an activity on the critical path can be crashed by two weeks. If the activity is actually crashed by two weeks, then:
A. The project's schedule will be reduced by 2 weeks.
B. The available slack on the noncritical paths will increase.
C. A new critical path may appear after the crash.
D. All of the above.
E. A and B only
正确答案：C
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第15题：
119 Using the figure in the Special window, Activity "D" has a latest start time of _____ weeks and a latest finish time of _____ weeks.
A. 2, 10
B. 4, 12
C. 6, 14
D. 7, 15
E. 9, 17
正确答案：A
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第16题：
● Assume that you have a network where an activity on the critical path can be crashed by two weeks. If the activity is actually crashed by two weeks, then:
A The project's schedule will be reduced by 2 weeks.
B The available slack on the noncritical paths will increase.
C A new critical path may appear after the crash.
D All of the above.
E A and B only.
正确答案：C
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第17题：
It was three weeks later ____ he heard the news.
A which B that C after D when
正确答案：B
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第18题：
tom____to america with his parents. They____back in two weeks.A)have gone;will come
B)has gone;will come
C)have been;will come
D)havebeen; come
参考答案：B
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第19题：
Tom () since he lost his job three weeks ago.A、has employed
B、was unemployed
C、had been unemployed
D、has been unemployed
参考答案：D
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第20题：
III读理解． (20分)
A
Dear John，
Thank you very much for your letter． I am glad that you enjoyed your holiday with me．We enjoyed having you and your sister here． We hope that you will both be able to come again next ear． Perhaps you'll be'able to stay longer next time you come． A week is not really long enough， is it? If your school has five weeks holiday next year， perhaps you'll be able to stay with us for two or three weeks．
We have been back at school for three weeks now． It feels like three months ! I expect that you are both working very hard now that you are in Grade Eight． I shall have to work hard next year when I am in Grade Eight． Tom and Ann won’t be in Grade Eight until 2011．
They went for a picnic yesterday， but I didn't go with them because I cut my foot and I couldn't walk very well． They went to an island and enjoyed themselves there． Do you still re’member the island? That's where all five of us spent the last day of our holiday．Tom， Ann and I send our best wishes to Betty and you． We hope to see you soon．
Yours sincerely，
Michael
( )21．________ stayed with Michael for a holiday．
A． Only John
B． Tom and Ann
C． John and his sister
D． Only Tom
正确答案：C
Ⅲ．21.C 【解析】从“we enjoyed having you and your sister here”可知。 -
第21题：
单选题What is Mr. Weeks proud of?AAll his students have become famous persons.
BAll his students often write to him.
CSome of his students have been famous.
DHe’s been a teacher for twenty-six years.
正确答案： A解析：
细节理解题。第一段倒数第二句提到“Some of his students have become famous persons, but they still remember him and often write to him. ”可知，他的一些学生变得很出名，C项表述正确。 -
第22题：
单选题Tom（）since he lost his job three weeks ago.Ahas employed
Bwas unemployed
Chad been unemployed
Dhas been unemployed
正确答案： C解析： 暂无解析 -
第23题：
单选题Which of the following is the best version of sentence 1 (reproduced below)?Mike Reynolds who is the author of the book, The New Girl came to our school to speak about his book, which tells about him portraying a woman for six weeks.A(As it is now)
BMike Reynolds, the author of The New Girl, spoke at our school about his book, in which he describes how he portrayed a woman for six weeks.
CMike Reynolds, the author of The New Girl, came to our school and told us about his book, where he portrayed a woman for six weeks.
DThe author of The New Girl, Mike Reynolds came to our school to speak, in it he portrayed a woman for six weeks,
EThe author of The New Girl, Mike Reynolds, spoke at our school about his book, that portrays a woman for six weeks.
正确答案： D解析：
A项不正确因为同位语“The New Girl”应该用逗号括起来，“him”应改为“his”。B项没有错误。C项中“where”的使用不正确。D项中的同位语不正确，且用一个逗号连接两个独立的主句，因此不正确。D项也改变了句子的意思。E项也不正确，因为“that”的使用不恰当，因为“that”不能用来修饰人。