正常的胎位是( )
【单选题】
交流供电系统由交流供电线路、低压交流配电屏、( )等部分组成。
A.
燃油发电机组和蓄电池
B.
燃油发电机组和逆变器
C.
整流设备和逆变器
D.
整流设备和蓄电池
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参考解析
【单选题】
When a teacher asks students to discuss how the writer's ideas are organized in the text, he/she intends to develop students' skill of _______.
recognizing the textual structure
understanding the writer's intention
distinguishing facts from opinions
commenting on the content of the text
【单选题】
Birgit Klohs
says that he switched to electrical engineering because he loves working with tools.
points out that there are enough people to fill the jobs that don’t need much skill.
points out that the US doesn’t manufacture anything anymore.
believes that it is important to keep a close eye on the age of his workers.
says that for factory owners, workers are harder to find because of stiff competition.
points out that a work / life balance can attract young people into manufacturing.
says that the manufacturing recession is to blame for the lay-off of the young people’s parents.
【单选题】
某女，55岁。患冠心病室性早搏3年，症见心悸不安，气短乏力则加剧，胸部闷痛，失眠多梦，盗汗，神倦，懒言。医医师处以参松养心胶囊，服后症状得到控制。此因该成药除活血通络外，又能（）
益气强心，清心安神
益气复脉，养阴生津
益气养阴，清心安神
益气强心，养阴生津
益气复脉，平肝安神
