题目内容

某工程单代号搭接网络计划中,关键线路是指()的线路。

A. 相邻两项工作之间的时距之和最大
B. 相邻两项工作之间时间间隔全部为零
C. 工作的持续时间总和最大
D. 相邻两项工作之间的时距全部为零

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A.surpriseB.that yearC.pityD.satisfaction

A. surprise
B. that year
C. pity
D. satisfaction

During the rest of sleep, the fatigue of the body disappears. The tired mind gathers new energy; the memory improves; and problems are seen in better perspective (观点).
Some adults require little sleep; others need eight to ten hours in every twenty-four. Infants sleep sixteen to eighteen hours daily, the amount gradually going less as they grow older. Young students may need twelve hours; university students may need ten. A worker with a physically demanding job may also need ten, whereas an executive working under pressure may manage on six to eight. Many famous people are repute to have required little sleep. Napoleon Bonaparte, Thomas Edison, and Charles Darwin apparently averaged only four to six hours a night.
(77) Whatever your individual need, you can be sure that by the age of thirty you will have slept for a total of more than twelve years. By that age you will also have developed a sleep routine; a favorite hour, a favorite bed, a favorite posture (姿势), and a formula (程式) you need to follow in order to rest comfortably.
(78)Investigators have tried to find out how long a person can go without sleep. Several people have reached more than 115 hours nearly five days. Whatever the limit, it is absolute. Animals kept awake for from five to eight days have died of exhaustion. The limit for human beings is probably about a week.
The writer implies that ______.

A. sleep is important for good mental and physical health
B. a light sleep is as restful as a deep sleep
C. memory is improved during sleep
D. sleep is relatively unimportant for human beings

Over a year ago, Jamel Balhi, a French young adventurer, made a promise in Paris to his Chinese friend from Shanghai he would【21】to meet him in China and have a cup of tea together. His Chinese friend never【22】that he really meant what he said. To his great【23】the 25-year-old Frenchman reached Shanghai in September【24】after a long journey.
【25】 the young adventurer had covered about 15,000 kilometres of different climates, travelling【26】15 countries. For him, it was a test of【27】and will:
Balhi started his journey on May 30 from Paris. The journey was to be a real test,【28】he had fully prepared.
【29】problem made it very hard for him to ask the way, and it always caused him troubles when he crossed【30】When he was venturing (冒险)【31】desert and the war zone between Iran and Iraq, he was【32】from hunger, coldness and war. At the same time, he had to stay alert (警惕)【33】and safeguard himself against the possible attacks by both animals and robbers.
"I'm lucky enough to arrive in Shanghai safe and【34】a cup of tea together with my Chinese friend【35】I promised last year." he said.
(36)

A. come
B. run
C. fly
D. ride

该图与横道计划相比,其主要优点是能够()。

A. 明确表达各项工作之间的逻辑关系
B. 直观表达工程进度计划的计算工期
C. 明确表达各项工作之间的搭接时间
D. 直观表示各项工作的持续时间

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