栈中元素个数怎么计算

信用证78 the amount of each draft must be endorsed on the reverse of this credit the amount of each draft must be endorsed on the reverse side of this credit by the negotiation bank 这句话应该怎么理解呢,请达人相告,谢谢还有一句，也不是很理解：AN EXTRA PHOTOCOPY OF INVIECE AND TRANSPORT DOCUMENTS ARE R we will accept and pay on maturity the draft presented to us under this credit我方将承兑并在到期时兑付本信用证项下的汇票presented to us .Mistakes will happen.Accept __________ and learn from A.it; them B.them; it C.it; it D.them;选什么呢? 求一篇《心晴天就晴》作文要800字左右的,尽量些得由教育意义些 天终于晴了作文 英语天才,会做么?那位? 哪位英语天才,帮帮忙!用所给词的正确形式填空Mr.Zhang is good with___(kid).Tom often helps us with___(we) English.( ⊙o⊙ )千真万确！选择：--It's__ Apirl 22nd. A.in B.on C.at D.forLook at these photos __famous people. A.i he didn't go to cinema._____he stayed at home lookingafter his motherA.instead ofB.insteadC.besidesD.except she wants____(wear) a dress today 写出下列英语单词的过去式!window( ) his( ) was( ) 那Yesterday( ) big( ) B___ they go to the farm after class,it t__ them the whole afternoon to pick cucumbers and dig sweet potatoes. the little boy___________(play piano well).maria________(take a bus) to school every day.____(may) I ask you some question?in the afternoon Amy ____home at 4:30they run and take____(A、a show B、shower C、the shower D、showers） they are doing their homework now they must hand in them after class.有语法错误吗? always someone play（ing）the piano是一首英文歌的歌词,男的唱的,蛮好听的 Mam said"I will buy food in this story tomorrow".转为间接引语句 He said “I will go to visit the museum tomorrow”.（what）按要求改句 He said he ___to the railway station to __ tomorrow.A.was going;set us off B.will go;set off usHe said he ___to the railway station to __ tomorrow.A.was going;set us off B.was going ;see us off C . will you go to the downtown tomorrow?_____ .but it is said that it will rain tomorrow.A Have no idea B it doesn't matter C it depents D as usual选哪个 什么是BRT公交车? 一束红光射向蓝色玻璃,则眼睛看到的玻璃的颜色是A红B蓝C白D黑 can it be in the office ___you left your umbrella?选项：A where B in which选哪个?为什么? i left my umbrella in my office .Could you wait_____I go back to get it?a.when b.if c.while d.before Can it be in the office you left you umbrella.A where B that C which D in which为什么Can it be in the office————— you left you umbrella.A where B that C which D in which -paul invited us to take part in a party tomorrow evening.-______Is tomorrow his birthday?Awhy not Bwhat a good idea Cwhat for Dthat's all right Can you find it?O T T F F S S N TA.NB.E这是一道选择题,可我连题目都看不懂! 在Can you tell me （__who it was that__） took my umbrella by mistake?I can't find it anywhere.这个句子中 划线部分是宾语从句, 在线英汉汉英词典,可以发音的 《牛津高阶英汉双解词典》怎么看发音?比如ceremony标的是/'serəməni ; AmE-məuni ‖ 'sεrə,moni/ 怎么有三个发音? 求在线英汉汉英词典（无需安装软件）,并有正确发音朗读（一定要有朗读）, 这句话为什么是病句?所谓“皮革奶”是指利用已经废弃的动物皮革制品、动物毛发水解为皮革水解蛋白后,混入到牛奶中,以提高产品中蛋白质含量. 一下这些句子的病句是什么样的,请修改,修改下列病句,把正确的答案写在病句下面题目一、泡桐树的叶子全都落到了地上和路上.题目二、泡桐树的花和叶子开的是那么旺盛.搞错了，问题不