【多选题】常见的错误接线方式有()。
C.
断中线或电源相序(一次或二次)接错相线或中性线对换位置
【判断题】中标通知书或者成交确认书对出让人和中标人或者竞得人不具有法律效力。( )
【判断题】产品概念和产品构思只是新产品开发研制过程的两个阶段,他们没有根本的区别。 ( )
【简答题】Having a credit card has become a fashion on campus, so theres an ongoing debate on whether using a credit card improves the students financial ability or just lures them to form. a bad consuming habi...
【单选题】有关温度传感器的接线方式,错误的是( )。
【单选题】下列关于高压线路的接线方式错误的是()。
B.
树杆式接线发生故障时介于干线的防有变电站都要停电
D.
为了便于切换操作环行线路中的开关不采用符合开关
【简答题】According to Paragraph 2, some organizations check their systems to find out [A] whether there is any weak point. [B] what sort of data has been stolen. [C] who is responsible for the leakage. [D] how...
【单选题】一用户三相三线有功电能表的错误接线方式为第一元件Uab、-Ia;第二元件Uac,-Ic。此错误接线方式的相量图如下。第一元件电压与电流的夹角是(),第二元件电压与电流的夹角是()。
A.
COS(30°+Φ)、COS(150°-Φ);
B.
COS(150°-Φ)、COS(30°+Φ);
C.
COS(30°-Φ)、COS(150°+Φ);
D.
COS(150°+Φ)、COS(30°-Φ)。
【单选题】. Anger is good for you, ____ you control it properly, according to new psychology research.