【多选题】帧速率是指________________。NTSC制式的帧速率为__________,PAL制式的帧速率为__________。
【单选题】Which one is not the presumptive symptoms of early pregnancy?
D.
Frequency of micturition
【简答题】Early symptoms may involve changes in behavior. (Passage C) Answer: Early symptoms may changes in behavior.
【简答题】What are the symptoms of early-stage gingivitis?
【多选题】The symptoms at the early stage of the disease include: