【判断题】Mr. Matthews has gone to Singapore on business for a few days.
【判断题】土壤有机污染物包括农药,多氯联苯,多环芳烃等,主要通过工业排污进入土壤。
【简答题】在干屋顶卷材防水构造中,当屋顶坡度 时,卷材宜平行于屋脊方向铺贴;当屋顶坡度 或屋面受震动时,卷材可垂直于屋脊方向铺贴;当屋顶坡度 时,卷材可平行或垂直于屋脊方向铺贴。
【判断题】Mr. Matthews has gone to Singapore on business for a few days.
【判断题】Mr. Matthews won’t be back until Saturday afternoon.
【判断题】Mr. Matthews won't be back until Friday afternoon
【单选题】Our special thanks (is, are) due to Mr. Matthews for the organization of the exhibition.
【单选题】在工件进行粗加工时,以下哪项说法是错误的
【单选题】Mr. Matthews maintained that he had done nothing __________.