算一算。8-5=4+5=9-0=9-5=4+4=8+0= 发布时间：2017-06-12 15:27 │ 来源：www.tikuol.com 题型：口算题 问题： 算一算。8-5=4+5=9-0=9-5=4+4=8+0=
题型：口算题 每一吨铸铁成本y （元）与铸件废品率x%建立的回归方程y=56+8x，下列说法正确的是（ ）A．废品率每增加1%，成本每吨增加64元B．废品率每增加1%，成本每吨增加8%C．废品率每增加1%，成本每吨增加8元D．如果废品率增加1%，则每吨成本为56元 查看答案
题型：口算题 Today is Sunday. I’ve been in Canada for two maonths. This is the first time that I’ve been away my family for such a 小题1: long time. With the help of Katia,a roommate of me, I’ve 小题2: soon got used to live without my parents around. Katia, like 小题3: many other Russian girls, are nice and lively. We become 小题4: friends shortly after we meet each other. Although her English 小题5: is a little hardly to understand, we enjoy charting and we 小题6: usually talk a lot about our own. We are both surprised 小题7: that Chinese culture or Russian culture are so different. Now, 小题8: we are planning a small party for the next Sunday. There, Katia 小题9: will introduce me to some of her friends, one of who has been 小题10: to China several times. I just cant wait. 查看答案