祝愿别人开心的成语

He was the last person ________ the boat.为什么b错 A:to leave B:leaving C:left D:to leaving为什么不选b,非谓语作定语不是么,主动ing 被动ed Benjamin Franklin 是谁?（美国科学家,18世纪的） 平均股价是算术是平均还是加权平均吗? 求平均是不是有一种几何平均值,还有一种算数平均值?分别怎么算?分别给个公式吧,谢谢.比如：（1＋2＋3＋4＋5）／5＝3,这个是算术平均值吧?那几何平均值呢?谢谢.用excel怎么实现这个运算？ I would like to know what sports you are good at是定语从句吗?不是的话什么句?求分析句子成分. either you or Jenny good at sports?求开头填什么 4.He was the only person in his office______ was invited.A.whom B.whose C.that D.which4.He was the only person in his office______ was invited.A.whom B.whose C.that D.whichD.in everything 改错I was the only one in the office that was invited to the party.1.I was the only one in the office that was invited to the party.2.Do you remember one afternoon inAmericawhere a terrible earthquake took place? __in his office was invited.He was the only one who got the invitation.A.Nobody B.None C.Some body else D.Everybody elseB打错了,B.Nobody else,答案是选B,为什么 17.This is Elizabeth Tina Brown,our new teacher.You may call her __________.A.Mr Brown B.Miss I was the only person in any office who was invited.这句话为什么就对呢?有限定词only不是用that么 1/2SIN15-2/根号3cos15=? 关于算术平均和加权平均你的小测成绩是80分,期末考成绩是90分,老 师要计算总的平均成绩,就按照小测30%、期末成绩70%的比例来算,所以你的平均成绩是：80×30%+90×70%=87（加权平均） 算术平均 计算(根号5+根号3-根号2)(根号5-根号3-根号2) 什么叫bank from which payment will be made? （根号12+根号24）/根号3-(根号2又1/2) 3根号3+根号(3分之1)-2+3+|根号3-2|-根号3(根号3-1) 请帮我改成大小100K,帧数40帧的动图! 王啸坤的一首歌有一句是 I love the journey 求大大帮改动图 40帧数小于100k 加权平均分和平均分有什么区别 ㏒2sin15°+㏒2cos15°的值是多少? 信用证中写到 Deferred payment/acceptance commission are for account of benificiary which will be deducted from the proceeds at the time of payment.这个条款是会产生哪些不便请指明.如果开证方不愿意修改怎么办? 信用证中这句话如何翻译 by deferred payment at against the documents detailed herein 信用证:PAYMENT UNDER RESERVE/GUARANTEE NOT ALLOWED 我司收到一个阿联酋的信用证,里面有一句:PAYMENT UNDER RESERVE/GUARANTEE NOT ALLOWED! 英语翻译 born的用法.我不知道到底是怎么样的, 澳洲大学申请 成绩单 平均分小数点后几位 2sin15°cos15°= ? 2sin15度cos15度得多少 2sin15°cos15°怎么算?我很久以来N节课没听懂,我也不想去问同学,不是不说就是数落一顿还是不说,老师?呵呵,过程详细 2sin15度cos15度（要详细过程）