A new technique ______ out, the yield increases by 20%.

admin2009-08-21  37

问题 A new technique ______ out, the yield increases by 20%.

选项 A、having working
B、having been worked
C、at a loss
D、for good

答案B

解析
转载请注明原文地址:https://jikaoti.com/ti/i59GFFFM
本试题收录于: 英语题库成考专升本分类
0

随机试题
最新回复(0)