【简答题】No______(sentarse,tú)en la silla , porque está muy sucia.
【单选题】 Mr. Smith as well as his children and wife ________ photos on the Great Wall.
【简答题】以吊顶龙骨为骨架,与9.5mm厚纸面石膏板组成的吊顶每平方米重量约为___左右。
【单选题】若所消费的商品 X 的最后一个单位的 MU 为所消费的最后一个单位的商品 Y 的 MU 的 两倍,要使消费者获得最大满足,只有当
【简答题】Dr. Smith, as well as his children _______(be) interested in science fictions.
【单选题】The father as well as his three children skating every Sunday afternoon.
【简答题】sentarse tú ( ) vosotros ( )