变容二极管工作时,其结电容会随着加在它两端的正向电压的大小而改变,从而可用在电视机频道调谐中。
参考答案:错
QDII基金的净值在估值日后()内披露。
A、2天
B、2个工作日
C、3天
D、3个工作日
They lost their way in the forest, and______made matters worse was that the night began to fall. [A] that [B] what [C] it