光彩夺目的____ 弯弯曲曲的____
情不自禁地____ 恋恋不舍地____
兴奋得____ 伤心得____
With the loss of labor,the old farmers ________at home had to choose less laborintensive crops.
已知:▱ABCD的周长为60cm,对角线AC、BD相交于点O,△AOB的周长比△DOA的周长长5cm,则这个平行四边形各边的长为____