皮皮学，免费搜题
登录
搜题
【单选题】
电容端电压和电感电流不能突变的原因是A.
同一元件的端电压和电流不能突变
B.
电场能量和磁场能量的变化率均为有限值
C.
电容端电压和电感电流都是有限值
D.
以上都正确
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】Not until the press reported the pollution _________ why the water supply had been cut off.
A.
people did know
B.
people had known
C.
did people know
D.
had people known
【多选题】Mark Twain had led an active life in the very center of the American experience. He had been a____________ .
A.
printer, pilot, soldier
B.
silver-minor, gold-washer
C.
lecturer, traveler, businessman
D.
novelist, autobiographer
【简答题】链传动的类型为传动链传动、（）、牵引链传动。
【单选题】None of the five people killed by inhalational anthrax had been vaccinated against influenza
A.
Right
B.
Wrong
C.
Not mentioned
【单选题】Fewer people would have died if______.
A.
more announcements had been made
B.
people hadn't used the lifts
C.
the people had obeyed the office
D.
the incident had happened on a weekend
【简答题】链传动的类型为传动链传动、起重链传动、（）。
相关题目：