【简答题】A) drift C) current B) tide D) trend70. A) drift C) current B) tide D) trend
【简答题】A) preparing B) protesting C) protecting D) prevailing70. A) preparing B) protesting C) protecting D) prevailing
【简答题】A) through B) into C) about D) on70. A) through B) into C) about D) on
【简答题】笔算更准确 117×26 108×45 250×70.