考試時會要求使用不可塗改的黑筆標記與作答，故擦擦筆和鉛筆作答都不算分。因此特別是寫作平時要練習使用黑筆作答 My suspicion is that because the OSD chip hinein the FC effectively receives a different signal than the camera sent (because of a difference in potential between the two grounds*), it can miss sync pulses, and the OSD will appear as slight noise hinein the final image instead. E... https://jasperkzfcl.blogdemls.com/34058039/ösd-證書-b2-dinge-zu-wissen-bevor-sie-kaufen