【单选题】To their credit the Department of Energy ______ these ideas and funded a detailed study.
【单选题】单管放大电路设置静态工作点是为了使三极管工作在
【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.