实施阶段合同管理的三大控制目标是( )。A.工程质量控制 B.进度控制 C.造价控

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问题:

实施阶段合同管理的三大控制目标是( )。

A.工程质量控制

B.进度控制

C.造价控制

D.资金控制

E.工程标准控制

考点:投资建设项目管理师投资建设项目实施投资建设项目实施
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下图中的三个实验都是课本用来说明分子的有关性质的,你认为正确的说法是

[ ]

A.实验1只为了说明分子有质量

B.实验2只为了说明分子间有间隔

C.实验3只为了说明氨气能够使酚酞变红

D.三个实验都是为了说明分子在不停运动

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天气变冷时,维持体温所散失的热能增多,人体内下列哪些腺体的分泌量会增多

①垂体 ②甲状腺 ③胰岛 ④肾上腺 ⑤卵巢[ ]

A.①②③

B.①②④

C.②④

D.③④

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熔化区内热交换的特点()

A.炉气给热以对流传热为主

B.区域呈凹形分布

C.区域高度波动大

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American and Japanese researchers are developing a smart car that will help drivers avoid accidents by predicting when they are about to make a dangerous move.

The smart car of the future will be able to tell if drivers are going to turn, change lanes, speed up, slow down or pass another car.

If the driver’s intended action could lead to an accident,the car will activate a warning system or override the move.

(46) " BY shifting the emphasis of car safety away from design of the vehicle itself and looking more toward the driver’s behavior, the developers believe that they can start to build cars that adapt to suit people’s needs , " New Scientist magazine said.

Alex Pentland of the Massachusetts Institute of Technology collaborated on the project with Andrew Liu who works for the Japanese carmaker Nissan.

(47)Tests of their smart car using a driving simulator have shown that it is 95 percent accurate in predicting a driver’s 12 seconds in advance.

(48)The system is based on driving behavior which the researchers say can be divided into chains of sub-actions which include preparatory moves.

It monitors the driver’s behavior patterns to predict the next move.

" To make its predictions, Nissan’s smart car uses a computer and sensors on the steering wheel, accelerator and brake to monitor a person’s driving patterns. (49)A brief training session, in which the driver is asked to perform certain maneuvers, allows the system to calculate the probability of particular actions occurring in two-second time segments, " the magazine said.

Liu has also done work on tracking eye movement to predict driving behavior. (50)He said the smart car could be adapted to monitor eye movement which could give even earlier predictions of when a driver is about to make a wrong move.

(48)The system is based on driving behavior which the researchers say can be divided into chains of sub-actions which include preparatory moves.

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如电击伤所致心肺功能骤停,进行心肺复苏术时必须坚持到患者恢复自主呼吸和心跳或确认死亡为止。

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