【单选题】The thief was caught ______ he was leaving the shop.
【多选题】选择滤波电路所用的元件滤波电容时,主要考虑的参数是:
【简答题】complain 的名词形式是 () 2. condemn的名词形式是() 3. fertile 的反义词是 () 4. ripe 的动词形式是() 5. scarcity的形容词形式是()
【多选题】在整流电路中广泛使用电容滤波,下面有关电容滤波正确说法有:
A.
电容相当于一个蓄水池,使用的电容越大抑制电压波动的效果就越好
【单选题】The thief was( )by the police at the railway station.
【单选题】Soon the thief was caught and fined five times______he should have paid.
【简答题】Hearing the dog barking fiercely, away . A. fleeing the thief B. was fleeing the thief C. the thief was fleeing D. fled the thief
【单选题】The thief was caught______ he was leaving the shop.
【判断题】电容滤波电路中RL值越大,滤波效果越好。( )