年初投资800万元以购置设备用来开发甲产品，各年生产经营资料如下该公司投资方案的内含报酬率

what do tree forgs have to keep them from falling要意思是frog,拼错了 they can help to well keep them相当于they can help them to _well _为什么? prevnt them from与keep them away from的区别 用示波器观察交流电通过二极管为什么示波器上的波形会变呢?请分析原因指的是从原来的正弦波形变成接完二极管后的波形，为什么？ 李白、杜甫、的叙事古诗（七言绝句 短的）+诗意 It doesn't matter wi__ it will rain or not An encouraging word to someone who is down can lift them up and heip them make it through the day.翻译中文, An encouraging word to someone who is down can life him up and heip him succeed.的翻译 英语题,第四大题 英语!第四大题!谢谢! 英语翻译too much.A.no matterB.whetherC.either D.if翻译解析He says__she will come or not doesn't matter too much.A.no matterB.whetherC.either D.if 求第四大题 英语 第四大题,英语, 第四大题七年级英语 Trees are our friends.Don not______(cut them dowm,cut down them) We should plant more trees and flowers around us . We shouldn’t cut them down . 翻译成汉语 My Colorful School Life Maybe I should cut down in the beginning.Then all of them can't happen!什么意思?Maybe I should cut down in the beginning.Then all of them can't happen!Maybe now ,it's great cut down当砍倒时接them用放二者之间么? 描写夏天的古诗题目小学生知道的,题目、诗人也要 tom fell down from the tree and he was______great______(处于危险中）.根据汉语提示完成句子 Tom fell down from the tree ,_oneof his legs.A.to breakB.breaking C.breaks D.broke选? I will get off __Nanjing Road.I live __200 Nanjing road. Tom climbed the big tree ___(get)the kite down You can get off the bus (on ,at)Nanjing Road. Tom is in the tree.He can't get ( )谢,为什么? You can get off ( ) Nanjing road.a.of b.at c.in d.at Take a No.55 bus and get off ____Nanjing Road 金属燃烧后体积变大了还是变小了? 一篇英语演讲稿,口语考试用的..what in your life are you most proud of why 求一篇英文演讲稿,主题为What do you want to be in your next life?以第一人称来描诉,要够3分钟的演讲哦! （高分悬赏）结构钢和高速钢中个合金元素的作用,请具体全面点