The boy is _____ than his brother. A. co 发布时间:2017-06-23 22:13 │ 来源:www.tikuol.com 题型:选择题 问题: The boy is _____ than his brother.A. confident B. more confident C. as confident
题型:选择题 某产品的四个部件甲、乙、丙、丁的功能系数分别为0.2、0.3、0.4、0.1,预计产品成本为4000元,则乙部件的成本控制指标是()元。A.400B.1200C.800D.1600 查看答案