Professor Wang, together with his colleagues, _______ working on the project day and nightto _______ the deadline.

A．are; meet

B．is; meet

C．are; satisfied

D．is; satisfied

测绘职工应当自觉维护（）、测绘系统的法定性和统一性，严格遵守测绘技术标准、规范图式和操作规程，真实准确，细致及时，确保成果质量。

A、测绘法规

B、法律法规

C、测绘技术标准

D、国家测绘基准