【单选题】在桥式整流电容滤波电路中,带负载时的输出电压为30V,空载时输出电压为( )。
【单选题】By quoting (引用) the remark of a being from another planet, the author intends to __________.
A.
suggest human beings are controlled by a clock
B.
describe why clocks can rule the planet Earth
C.
tell readers what clocks look like
D.
compare clicks to human beings
【单选题】He made a() remark on the latest shown film.
【单选题】He was determined to hold on this job whatever difficulties he might run() remark on the latest shown film.
【简答题】He concluded his speech with a remark that __________________(失败乃成功之母).
【单选题】Although he_______mentioned the introduction of that product, his remark still has a profound effect on his fellows.
【简答题】桥式整流电容滤波电路中,已知 ,空载时其输出电压 = V。