单项选择题 The count overflow flag bit of T0 is ().

单项选择题 营销部须在交楼（）天前，将赠送物业费的批准文件及明细移交物业公司

未知题型 Display 24-hour clock: Implement 24-hour digital clock with timer 1 Display hour, minute and second information Modify time information Start/stop the clock Reset the clock