【单选题】功率放大器的作用,下列说法正确的是( )
B.
通过功放管的电流控制作用,将电源供给功放管C极的直流功率转换成交流功率。
C.
通过功放管的电流控制作用,将电源供给功放管C极的交流功率转换成直流功率。
【单选题】Picasso's ______ ability was apparent in his early youth when he started drawing sketches.
【单选题】A公司发行3万股股票吸收合并B公司,双方无关联方关系,A公司新发行股票的公允市价为每股48元,面值15元,而B公司的净资产账面价值为54.6万元,可辨认净资产公允价值为1 294 821元,则此次的合并需要确认的商誉为( )元。
【单选题】_____ wrote a number of little sketches of "cockney characters". His first book, Sketches by Boz appeared in 1836.
【单选题】The sketches made in Antibes by Picasso are mainly about _____.
A.
the luxury life of the rich
B.
the rich life on the beach
C.
the miserable war time
【单选题】_________ is the main character in Hughes’ satirical sketches.
【单选题】以液体作为载体输送颗粒状物料的输送方式是______。
【单选题】毛泽东思想是在哪一次会议上被写入党章,并确立为指导思想的?
【单选题】设有平面 及两个半球面 所围均匀物体Ω(两半球面之间部分)的形心坐标为 ,则( )