【简答题】Chapter 1 Skill A-4.mp3: Whatis the topic of the conversation?A. Taking measurements. B. Taking a break. C. Looking on the Internet. D. Finding a small MP3 player.
【单选题】004 004.mp3:
B.
Show his business card.
【单选题】合同能源管理(EMC-Energy Management Contract)是一种新型的市场化节能机制,其实质就是以()来支付节能项目全部成本的节能投资方式。
B.
中国节能协会节能服务产业委员会(EMCA)的资助
【判断题】变压器的匝间短路属于变压器的内部故障。( )