21世纪于1971年成立于美国，世界500强企业全球最大的房地产服务提供商。
The 21st century was established in 1971 US, the world 500 strong enterprise whole world biggest real estate serves the provider.
此外，2 1世纪后半段北半球高纬度地区的年平均强升温幅度主要来自于冬季增温。
In addition, the simulated strong warming at northern high latitudes in the second half of the 21st century is mainly due to winter warming.
克氏外科学以实用，可读性强涵盖了外科学的原理和技术闻名于世，第十七版的克氏外科学继承了这一特色。
The 17th Edition carries on this distinguished legacy, presenting the worlds most thorough, useful, readable, and understand able coverage of the principles and techniques of surgery.
应用推荐