智能发电主要涉及（）；（）和大容量储能应用等技术领域。
参考答案：常规能源、清洁能源
While doing shopping, people often can't help purchasing the goods ________ through media.[ ]
A. advocated
B. announced
C. advertised
D. competed
确定 * * 肿块性质的最可靠方法是( )
A．B超 B．活组织病理检查C．近红外线检查 D． * * X线检查
