【单选题】— ______ that he picked up his uncle at the airport? — It was at 6:00 in the afternoon ______ he got off work. [ ]
【单选题】--- _______ that he picked up French? --- It was in 2010 _______ he traveled in France.
【单选题】材质属性中ambient属性是指( )。
【单选题】正态分布有两个参数μ与σ,( )相应的正态曲线的形状越扁平
【单选题】After_____a11 the apples,he____ the biggest one in the basket and handed it to me.
【简答题】磺胺类药的不良反应有________、________和________等。
【单选题】He ______ the phone expecting to hear the chairman's gruff voice. A. picked up B. picked at C. picked on D. picked out