In the circuit, under which of the following circumstances will TC appear high level?
A、WhentheETof163isgroundedandthelightsofQ0-Q3areon;
B、WhentheETof163isconnectedtologic1andtheLEDsonQ0-Q3arealllitup.;
C、WhentheETof163isgroundedandthelLEDonQ0-Q3arealloff;
D、WhentheETof163isconnectedtologic1andtheLEDonQ0-Q3arealloff
发布时间：2024-09-30 09:03:19
