庆新年联欢晚会前,某同学为了增加节日的欢乐气氛,准备用彩灯组成“欢度新年”几个大字.他到电子商城购买所用的器材,发现有一种灯泡的样式、发光的颜色、价格等都比较满意,这种灯泡上标有“2.2 V 0.25 A”的字样,该同学需购买_____个这样的彩灯,才能将它们全部串联后接入教室中的插座上.
Colours can change our moods and make us happy or sad .
–––Who is singing in the next room? –––It_______ be Lucy. She has gone to Hong Kong.
As a teacher , you patient .
Work hard , you will fail the exam .
–When shall I call , in the morning or afternoon ? -- . I’ll be in all day.