PERT法的关键线路的特点有哪些?

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问题:

PERT法的关键线路的特点有哪些?

考点:中级水路运输物流与供应链管理物流与供应链管理题库
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阅读理解,判断对"√"错" × "。

        Amy is my best friend. She's a nice girl. She's ten. She's tall and quiet. She has long hair and a small

mouth. She has big eyes and a small nose. She likes music, computer games and painting. She likes books,

too. She has fifty story books. She is a good student. I like her very much.

( ) 1. Amy is my sister.

(     ) 2. Amy is not quiet.

(     ) 3. Amy has 15 story books.

(     ) 4. Amy likes painting and music.

(     ) 5. Amy has long hair and a small mouth.

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比-2大且比2小的整数有(  )

A.4个

B.3个

C.2个

D.1个

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急性颅脑损伤在何种情况下切忌腰穿()

A.病情稳定之后

B.怀疑有蛛网膜下腔出血

C.怀疑有颅脑血肿

D.意识障碍尚未恢复

E.开放性颅脑损伤

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所谓自动跟踪,就是当系统在手动操作时,调节器输出始终能自动地与执行机构的()或位置反馈电流保持()。

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外科颈骨折晚期并发症以下哪一项不常见?()

A.继发性肩周炎

B.肱二头肌肌腱炎

C.肱骨头缺血性坏死

D.冈上肌肌腱炎

E.高举功能受限

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