【简答题】比较即期付款交单、远期付款交单、承兑交单的异同。
【多选题】关于自行设计一个正弦稳态电路,来验证最大功率传输定理,并观察与记录波形说法正确的有
B.
如果同时用虚拟示波器观察电路中电容与电感两端的电压波形,那么此时它们的波形应为反向关系
C.
设计测量表格时,应考虑既要改变电阻,也要改变电抗
D.
应该在负载阻抗与等效阻抗近似相等时多设计几组测量数据
【简答题】Most people hate change, which is sad since we often go through intense changes in life. And for some of us, even the smallest changes can upset our day. So the question is: Why do most of us find mak...
【单选题】The witness's statement about the accident was very ______ ;we knew almost everything about it now.
【单选题】Mary and I see each other ______, but not as often as we used to.
【判断题】电功率大的用电器,电功也一定大。 此说法是否正确?
【单选题】We often witness some people turn a blind eye on the beggers by the road. The underlined phrase "turn a blind eye on" probably means( ).