A:The box is under the bag.
B:The box is on the bag.
C:The box is in the bag.
计算
(1)(﹣a3)2÷a2
(2)|﹣3|﹣(3﹣1)0÷(12)﹣2.
关于美国的农业,正确的是( )
加强孝道教育体现了对民族优秀文化的尊崇和继承。下列名句中体现“孝道”的是()