on+a+long-term+basis

阚符欢3347高一英语必修4知识点总结人教版 -
瞿娟琰19577976857 ______ 必修4 Unit 1 have…in common dress as … help do sth drive…out of… put … to death concern…with welfare institute a specialist in … devote…to… encourage…to… rather than behave like… watch +宾语+宾补(doing) wake up mean doing sth ...

阚符欢3347giving attention to what you are doing -
瞿娟琰19577976857 ______ Concentrate on what you are doing.Concentrate可作及物动词和不及物动词:vt. (及物动词 transitive verb)1.集中;聚集,集结[O][(+on/upon)]We must concentrate our attention on efficiency. 我们必须把注意力集中在效率上.Our population is ...

阚符欢3347have put on 可以用什么延续性动词 -
瞿娟琰19577976857 ______ They have finished laying up the house, and have put on the roof. 他们已竖立了那幢房屋的骨架并盖上了屋顶. You look rested. You seem to have put on some weight. 你气色好多了,体重看来也增加了些. He must have put on several kilos. 他体重一定增加了好几公斤.

阚符欢3347concentrate什么意思?
瞿娟琰19577976857 ______ v.集中,聚集

阚符欢3347怎样区别冠词a an the 什么时候用? -
瞿娟琰19577976857 ______ - 你自己不会找嘛、、 真讨厌..还得让我给你打.. a/an 1.列举此类人或物 2.泛指 he bought me a pen 3.one: can a robot do such work? 4.:a hundred 5.每一once a week 6.集体名词 a large class 物质名词 a heavy rain 抽象名词 have a try 转悠...

阚符欢3347键盘快捷键都有哪些?像;Ctrl+A - --全选. -
瞿娟琰19577976857 ______ Windows快捷键大全 一、常见用法 F1 显示当前程序或者windows的帮助内容. F2 当你选中一个文件的话,这意味着“重命名” F3 当你在桌面上的时候是打开“查找:所有文件” 对话框 F10或ALT 激活当前程序的菜单栏 windows键或...

阚符欢3347on有多少种用法?
瞿娟琰19577976857 ______ 一种是介词 意为“在..上面” on: on the table or on the chair 还有'关于' 如;The story is on interesting boy ! 另一种是用在个别动词后 引导一个介词短语 如;depand on

阚符欢3347关于向量的数量积的一道选择题 已知向量a≠e,e为单位向量,相对e∈R,恒有|a - te|≥|a - e|,则( ) -
瞿娟琰19577976857 ______[选项] A. a⊥e B. a⊥(a-e) C. e⊥(a-e) D. (a+e)⊥(a-e) 以上字母除了t之外均有箭头的

阚符欢3347已知数列{an}中,a1=3,a(n+1)=3 - (1/an - 1)求证{1/(an - 2)}是等差数列 -
瞿娟琰19577976857 ______ a(n+1)-2=1-[1/(an-1)]=[an-2]/[an-1] 两边去倒数,得1/[a(n+1)-2]=[an-1] / [an-2] 再把右边的式子分裂 得到=1+1/[an-2] 整理得到1/[a(n+1)-2] - 1/[an-2]=1 即 等差数列

阚符欢3347giving attention to what you are doing用c为首字母的一个英文单词翻译 带上中文意思到底哪个是对的啊 ,你们说的我都没学过 -
瞿娟琰19577976857 ______[答案] Concentrate on what you are doing. Concentrate可作及物动词和不及物动词: vt.(及物动词 transitive verb) 1.集中;聚集,集结[O][(+on/upon)] We must concentrate our attention on efficiency.我们必须把注意力集中在效率上. Our population is ...