二维向量叉乘坐标运算

有了KFC,生活好滋味! 有了肯德基生活好滋味这句话有什么特点 怎么才能培养自己的意志力?或者说,我怎么才能培养自己坚持完成一件事情的品质? 关于FACTORY是什么意思 what luck 什么意思 what is luck写一篇文章.60字左右.帮个忙就一天 What b＿＿ luck! What luck英语 儿歌did you ever see a lassie的歌词翻译:Did you ever see a lassie, A lassie, A lassie? Did you ever see a lassie?Go this way and that? Go this way and that way,And this way and that way, Did you ever see a lassie? Go this way and that 其实Go 物质什么时候用构成什么时候用组成 ()What dog never barks?A.big dog()What dog never barks?A.big dog B.hot dog C.small dog D.red dog Whatever means what you scared will never bearound着句话, 英语翻译请翻译“ It reuses that would otherwise be lost to the air ,reducing carbon emissions while also costs.” He was afraid that it would be rather different from fishing in the rivers．整句翻译 i always find my sister's thing covering my bed为什么用covring,用 cover不行吗 I always help my sister_______ her history A to B with C for D of 英语翻译2.The custom of visiting friends,relatives and neighbors on New Year’s Day is one the Old World traditions that has taken on a new in USA 黄河颂是黄河大合唱 中的一个乐章,它由 什么三部分组成 "All Plant and Equipment is depreciated at 12·5% on a reducing balance basis."Can anybody translate this sentence for me plz. From the east gate of the way to the Summer Palace? What kind of transportation convenience?什么意思? 怎么写信求爱 有那些求婚创意比较好的我要求婚 在后天 希望各位大神能给我出谋划策 策划一个经济实惠又感人的求婚方式 I won not buy the car because it is too expensive 的同义句 英语翻译 英语翻译The announcement Saturday of his choice of Senator Joe Biden of Delaware included an Obama campaign text message to supporters.（这句话是美国VOA慢速英语听力里面的原文.） 《黄河颂》和《保卫黄河》在内容和语言上有什么不同?一定要好好答 _____【be】his shoes black? 根据句意及首字母填空补全句子:The new car is too expensive.We can't a___it. 哪种烃在标况下的密度为2.41g/L?RT 根据句意补全单词 The new car is so expensive.we cannot a______ it. 回肠荡气 回肠荡气等于回肠荡气吗?如果不等于,那如果有一个题：写出荡气回肠的近义词.可以写回肠荡气吗?如果等于,请说明为什么等于,两者倒过来写只是为了更押韵吗、?写帮我解解词.