【单选题】从行文方向上来看,下列属于上行文的是( )。
【单选题】甲、乙、丙、丁四人做手工纸盒,已知甲、乙、丙三人平均每人做了28个,乙、丙、丁三人平均每人做了31个, 已知丁做了33个,问甲做了多少个?
【判断题】如果是在同样条件下,酸性岩的结晶颗粒比基性岩的要粗一些。
【简答题】by the time feel like get on/off head for instead of in the end pull over result in tap (sb.) on the shoulder turn out (all right) His poor English has __________________________...