【单选题】To their credit the Department of Energy ______ these ideas and funded a detailed study.
【判断题】合同的核心体现为民事主体间的法律地位平等
【单选题】To their credit ,the Department of Energy ____ their duty to conduct the project of saving non-renewable resources.
【单选题】To their credit the Department of Energy ____these ideas and funded a detailed study.