每个零件所用的时间一定,做零件的总时间和零件的总个数成正比例.______. 发布时间:2017-04-30 07:15 │ 来源:www.tikuol.com 题型:解答题 问题: 每个零件所用的时间一定,做零件的总时间和零件的总个数成正比例.______.
题型:解答题 —Are you sure you can do well in tomorrow's test, Lucy?—______. I've got everything ready. [ ]A. It's hard to say B. I'm afraid not C. I think so D. I hope not 查看答案