在工作站平台上常用的计算机辅助设计软件有（）。

A:UG B:ProE C:I-DEAS D:CATIA

CATIA数控加工的工作流产程？

CATIA是IBM公司推出的产品。

下列软件中，包含CAM功能（不包括第三方插件）的CAD/CAM系统是（）。

A:Auto CAD B:CATIA C:Solidedge D:Solidworks

下列软件中，具有自主知识产权的国产CAM系统是（）。

A:CAXA B:CATIA C:Pro/E D:UG

The world’s oceans have warmed 50 percent faster over the last 40 years than previously thought due to climate change, Australian and US climate researchers reported Wednesday. Higher ocean temperatures expand the volume of water, contributing to a rise in sea levels that is covering small island nations and threatening to destroy the low-lying, densely-populated low regions around the globe.
The study, published in the British journal Nature, adds to a growing scientific chorus of warnings about the pace and consequences rising oceans. It also serves as a corrective to a massive report issued last year by the Nobel-winning UN Intergovernmental Panel on Climate Change (IPCC), according to the authors.
Rising sea levels are driven by two things: the thermal expansion of sea water, and additional water from melting sources of ice. Both processes are caused by global warming. The ice sheet that sits atop Greenland, for example, contains enough water to raise world ocean levels by seven meters, which would bury sea-level cities from Dhaka to Shanghai.
Trying to figure out how much each of these factors contributes to rising sea levels is critically important to understanding climate change, and forecasting future temperature rises, scientists say. But up to now, there has been a puzzling gap between the projections of computer-based climate models, and the observations of scientists gathering data from the oceans.
The new study, led by Catia Domingues of the Centre for Australian Weather and Climate Research, is the first to reunite the models with observed data. Using new techniques to assess ocean temperatures to a depth of 700 meters from 1961 to 2003, it shows that thermal warming contributed to a 0.53 millimeter-per-year rise in sea levels rather than the 0.32 mm rise reported by the IPCC.

A:lower water levels B:change their opinions C:better predict climate change D:bury sea-level cities like Dhaka and Shanghai

对于CATIA 参数化设计的描述哪些是不正确的？

A:实现参数驱动模型变更 B:便于后期基于参数统计工程量 C:变更方便快捷 D:自由设计