【判断题】接串大电感的阻感负载时,单相桥式(包括全控、半控)相控整流电路的输出直流电压量化公式是 。
【单选题】Coco Chanel was amazing French woman, who attracted world’s attention for over 80 years.
【单选题】Jane enjoys _____ and she _____ very well. [ ]
【单选题】Coco Chanel’s quote “Fashion passes but style remains” ______.
A.
means fashion needs to be replaced by something new every year
B.
distinguishes between fashion, which is temporary, and style, which lasts longer
C.
promotes clothes accessible to women
D.
means the same in English as in French
【判断题】接串大电感的阻感负载且未给负载并接反并联的续流二极管时,单相桥式全控整流电路的输出直流电压量化公式是 。
【单选题】社会学家米德提出 “ 人有主我 宾我”两种概念,并 认为人总是要从______的角度来看。
【单选题】考虑一个请求调页系统,它采用全局置换策略和平均分配内存块的算法。如果该系统中测得如下的CPU和磁盘交换区利用率,请问哪种情况不能通过增加多道程序的道数来提高CPU的利用率()?
A.
CPU的利用率为13%,磁盘交换区的利用率为97%
B.
CPU的利用率为87%,磁盘交换区的利用率为3%
C.
CPU的利用率为13%,磁盘交换区的利用率为3%
【判断题】中间商品牌和制造商品牌在品牌竞争中各有优势