90 per cent of listeners had stayed with the programme when it changed its time slot.节目改变播送时段后，90%的听众依然继续收听。TDMA allocates each user a different time slot on a given frequency.TDMA在给定频率为每个用户分配不同的时隙.Remark: Students can f...
He was kneeling by his bed in an attitude of devotion.他虔诚地跪在床边。Better die standing than live kneeling.宁愿站着死,不愿跪着生.Kneeling in front of the open hearth, old Maria was fanning the smoldering fire.老玛丽亚跪在壁炉前的空地上，扇着闷燃的炉火。...
眼睛对光起反应.The eye reacts to light.高度活性和非定域的电子应该能够与光子起反应.Highly reactive and delocalized electrons would react with photons.它们能和许多金属起反应,生成盐并放出氢.They react with many metals to form a salt and give off hydrogen....