【单选题】(1) W hy should you purchase (购买) something at our food sale? (2) F irst, we need money for our field trip to Washington, D. C. (3) Second, our food will be worth the money because it is all homemade....
【简答题】每一根KZ2a的内侧纵向钢筋长度为( )m,其重量为( )kg。(保留三位小数)
【简答题】每一根KZ2的内侧纵向钢筋长度为( )m,其重量为( )kg。(保留三位小数)
【单选题】The money left over after paying for housing, food, and other necessities is called