在项目实施过程中,为对工程进度目标进行动态跟踪和控制,在按照进度控制的要求,收集施工

题型:单项选择题

问题:

在项目实施过程中,为对工程进度目标进行动态跟踪和控制,在按照进度控制的要求,收集施工进度实际值之后应做的工作是()。

A.采取措施进行纠偏 

B.比较工程进度的计划值和实际值 

C.调整工程进度目标 

D.逐层分解工程进度目标

考点:建设工程施工管理建设工程项目目标的动态控制建设工程项目目标的动态控制题库
题型:单项选择题

乳母长期营养不良,乳汁中成分含量改变较显著的是()

A.蛋白质

B.乳糖

C.铁

D.钙

E.维生素D

题型:单项选择题

如图(a)所示,光滑且足够长的平行金属导轨MN、PQ与水平面间的倾角θ=30°,两导轨间距L=0.3 m。导轨电阻忽略不计,其间连接有阻值R=0.4 Ω的固定电阻。开始时,导轨上固定着一质量m=0.1 kg、电阻r=0.2 Ω的金属杆ab,整个装置处于磁感应强度B=0.5 T的匀强磁场中,磁场方向垂直于导轨面向下。现拆除对金属杆ab的约束,同时用一平行金属导轨面的外力F沿斜面向上拉金属杆ab,使之由静止开始向上运动。电压采集器可将其两端的电压U即时采集并输入电脑,获得的电压U随时间t变化的关系如图(b)所示求:

(1)在t=2.0 s时通过金属杆的感应电流的大小和方向;

(2)金属杆在2.0 s内通过的位移;

(3)2 s末拉力F的瞬时功率。

题型:单项选择题

不结盟运动

题型:单项选择题

中国的广告团体组织()、()、()

题型:单项选择题

Sometimes geopolitical lessons come from the strangest places. With Eric Schmidt stepping down as CEO of Google and replaced by founder Larry Page, I can’t help but wonder if world leaders are taking note. Google perfected the horizontal business model. To the delight of enthusiasts of David Ricardo, the comparative economist, the company does one thing really well search and has built an ecosystem for others to flourish using it as a platform.

Contrast this with IBM and AT&T, long past their expiration dates as successful vertical companies. It’s no coincidence that the Soviet Union and IBM, two raging, top-down, command-and-control systems, collapsed at about the same time. What do I mean by vertical In its heyday, IBM did everything from soup to nuts. Designed chips, wrapped plastic around them, wrote operating systems and applications, and then sold and serviced mainframes. The giant captured half of computer-industry sales and 80 percent of profits until horizontal companies Intel and Microsoft knocked it out at its knees. AT&T owned phones and switches and long-distance lines until a very horizontal Internet and companies like Skype changed the economics of the phone call. These same dynamics are now driving the world economy into a productive horizontal enterprise. And it’s about time.

Economies are about increasing the standard of living of their participants. If you don’t have an economic system to create productivity, you end up stealing it from your neighbors. Think Roman Empire. Or the British who colonized large parts of the world to lock up natural resources to plug into their manufactories. Both very vertical. As of 1989, the United States of America became the world’s sole superpower. But what is America going to do with this status Unlike past empires, there’s no incentive to take over the rest of the world. Why take over a country and deal with the headaches of a welfare system, and have to fix the plumbing in Uzbekistan, when you can buy its output on the cheap, even ordering its goods over the Web Despite all the protests, globalization instills peace. Trade now represents 26 percent of world GDP, up from 18 percent in 1990.

Globalization has linked the free world in a smart horizontal alliance. Computers, cell phones, and fiber optics are not made in any single country to be exported worldwide, but instead have components and labor from more than 30 inseparable countries, including China and Vietnam. Horizontal rules!

Without much forethought or planning, the world has structured itself into a horizontal wealth-creating and peace-maintaining system—a productive system that actually increases the standard of living of all the participants, not just those in the United States. America still sits on top of the heap, sure, but wealth has increased for every country, company, and person that contributes. And they get rich not by stealing from the rest of the world, but by adding value to the food chain. Just ask Google.

Unlike Britain, the United States()

A. does not intend to conquer the world with military power

B. does not exploit natural resources of other countries for its use

C. does not want to produce everything for the world to consume

D. helps the rest of the world to develop without colonizing them

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