作者：dracos

WF，启动！

VIP提前进场30分钟，没什么人排队。

看之前当然要先买买买了，我提前做好了功课，锁定52toys、响指动漫和3A。

排队的时候顺便拍个对面海洋堂的钢巴斯塔。

买到啦，eva配色甲虫、门框机器人和冰锥。

赶下一场，响指动漫透明色米开朗基罗。

买完米开朗基罗，vip提前入场的30分钟已经用完，刚刚排到3A的队伍里普通票也跟着进来了，总之还是买了一个dlx通天晓和mdlx漫画色威震天，可惜抽奖只抽到一个鼠标垫。

3A对面就是顺丰的，呃，展台，不过小哥还没来上班，而现场堆起来要送的快递太多，所以我还是决定把东西自己搬到车上去，来回又折腾了将近半个小时……

于是可以安心的去看展览啦。

第一家小号手，Q版拼装和小比例拼装变形金刚们。

52toys，一些经典的卡婊街机角色，三国志、名将、快打旋风。

以及自家的各种盒子。

我买到的EVA配色甲虫，流浪地球2笨笨、门框机器人和moss。

千值练其实本次也有会场限定变形金刚，不过我已经托人在上海wf买了，至于没有买到的黑史达与狮王这次没有拿出来卖，所以在外面拍拍展品就好了。

千值练风雷模型的拼装变形金刚也有哦，阿尔西似乎比风刃更加放飞自我了一些。

海洋堂本次有不少展品，钢巴斯塔是其中我最为喜爱的，特别是高屋典子和天野霞的小人，细节相当不错。

居然还看到了在原神4.2魔神任务中大出风头的魔王武装达达利亚。

真限定版，全球限定一体，而且诸位绝对不用担心会抢不到。

不论哪个玩具展都不会缺席的塑唐，入口排起了大长队，告辞。

冭趣可能是这次最有诚意的参展商，除了大家已经见到的逍鳐外还拿出了四个新的产品，诚意满满，不过变形可别再那么麻烦了……

看看逍鳐这分件数，啧啧……

求求你们整点不用汉语拼音也能让人认识的名字吧。

暗源同样带来了大量产品，还有战锤板甲cos小姐姐哦。

hobbymax大长队，还是告辞，离得远远的拍一些现场贩售的产品吧。

本次wf2023北京邀请了河森正治现场演说和签名，下午1点开始的场次在上午九点就排起了长队，依然告辞。

封神的周边占据了4号馆的C位，价格相当不便宜，而且说实话这个质感，特别是1:1的帝乙剑和鬼侯剑在灯光下都透出一股塑料味，实在是下不了手。

同为末那的产品，我还是更喜欢二号机和十三号机，可惜家里实在没有地方摆了。

最近西游题材很火，特别是狮驼岭三兄弟，是不是“骷髅若岭，骸骨如林。人头发躧成毡片，人皮肉烂作泥尘。人筋缠在树上，干焦晃亮如银。真个是尸山血海，果然腥臭难闻。东边小妖，将活人拿了剐肉；西下泼魔，把人肉鲜煮鲜烹”的描写太邪典的原因呢？

刚才光顾着买，现在回来再拍一拍响指动漫的这套机器忍者龟吧，确实是很不错的玩具，推荐。

你好，阿尔西。

五号馆中央位置木棉花工作室的富江，你们特么犯法了知道吗？

易玩天开的展位干货满满，已发售和未来计划中的产品都拿了出来，除了一堆军事武器的变形玩具外还夹杂了一个游戏王的艾克佐迪亚。

有一说一，连官方都只能僵尸站的话，这套超合金舰神的组合恐怕基本就没有什么可动性可言了，在我看来这套玩具的组合设定颇有些画蛇添足的感觉，它的出现大大提高了变形的难度，让人完全失去了把玩的乐趣，同时还加大了玩具的设计和制造成本，最后合体效果却相当一般，真是得不偿失了。

3A展位同样排长队，外面随便拍一拍吧。

六号馆的神机工业恐龙特急克塞号霞光号刚刚在淘宝开启了众筹，价格不算便宜，似乎还不足以唤起八零后们强烈的购买欲望。实际产品效果相当不错，外观细节很丰富，还能发射克塞小人，情怀已经拉满。

说到六号馆，那还真是什么都有，聚集了大量小工作室，拿出了各种奇奇怪怪只有你想不到没有他们做不到的产品。

再多就不太方便发了，毕竟我也不想变成法外狂徒……

经过三个小时的逛展之后，出来看到湛蓝天空下充满老式工业风的首钢园，嗯，还真是有趣的一天呢。

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朱娜祁4664求由方程X的3次方加Y的3次方等于3axy所确定的隐函数的导数dx分之dy -
成君黎15619301371 ______ x^3+y^3=3axy 3x^2+3y^2dy/dx=3ay+3axdy/dx dy/dx=(3ay-3x^2)/(3y^2-3ax)=(ay-x^2)/(y^2-ax)

朱娜祁4664已知向量a的模长=3,向量b的模长=4,a和b夹角120度.求「3a+4b」的模长还有一问「3a - 4b」的模长 -
成君黎15619301371 ______[答案] (3a+4b)^2=9a^2+16b^2+24a*b =81+256+24*3*4*(-1/2) =193, ∴|3a+4b|=√193. (3a-4b)^2=9a^2+16b^2-24a*b =81+256-24*3*4*(-1/2) =481, ∴|3a-4b|=√481.

朱娜祁4664先化简再求值(3a+b)(3a - b)+3(a - 2b)²+( - 3a)(4a - 3b),其中a= - 1,b= - 2 -
成君黎15619301371 ______[答案] (3a+b)(3a-b)+3(a-2b)²+(-3a)(4a-3b)=9a²-b²+3(a²-4ab+b²)-12a²+9ab=9a²-b²+3a²-12ab+3b²-12a²+9ab=2b²-3ab当a=-1,b=-2时原式=8-6=2

朱娜祁4664—3a的二次方+2a - - 2+a的二次方—5a+7等于多少,写过程 -
成君黎15619301371 ______ —3a的二次方+2a--2+a的二次方—5a+7=(-3+1)a²+(2-5)a+(7-2) =-2a²-3a+5

朱娜祁4664已知向量a=( - 3,5),b=(2,7) 求第一问3a+2b 第2问|3a - 2b| -
成君黎15619301371 ______[答案] 向量直接横坐标相加,纵坐标相加啊 3a+2b=(-5,22), 3a-2b=(-13,1) |3a-2b| =根号(13^2+1^2)=根号170

朱娜祁4664长方形的一边长等于3a+2b,另一边比它小a - b,那么这个长方形的周长是______. -
成君黎15619301371 ______[答案] 首先表示出长方形的另一边是3a+2b-(a-b)=3a+2b-a+b=2a+3b,再根据长方形的周长公式,得 2(3a+2b+2a+3b)=2(5a+5b)=10a+10b.

朱娜祁46643a+2b=多少 -
成君黎15619301371 ______[答案] 等于3a+2b.

朱娜祁4664已知三个非负数a、b、c满足3a+2b+c=5和2a+b - 3c=1.若m=3a+b - 7c,则m的最小值为 - _ - ,m的最大值为 - _ - . -
成君黎15619301371 ______[答案] 联立 3a+2b+c=52a+b-3c=1 得 a=-3+7cb=7-11c 由题意知:a,b,c均是非负数 则 a=-3+7c≥0b=7-11c≥0 解得 3 7≤c≤ 7 11, m=3a+b-7c =3(-3+7c)+(7-11c)-7c =-2+3c 当c= 3 7时,m有最小值,即m=-2+3* 3 7=- 5 7; 当c= 7 11时,m有最大值,即m=-2+3* ...

朱娜祁4664对于有理数a,b,定义a⊙b=3a+2b,则计算[(x+y)⊙(x - y)]⊙3x得 -
成君黎15619301371 ______[答案] [(x+y)⊙(x-y)]⊙3x =[3(x+y)+2(x-y)]⊙3x =(3x+3y+2x-2y)⊙3x =(5x+y)⊙3x =3(5x+3y)+2*(3x) =15x+9y+6x =21x+9y 超简单

朱娜祁4664已知a,b,c,d是公比为3的等比数列,则3a+b/3c+d=? -
成君黎15619301371 ______[答案] 因为公比为 3 ,所以 b=3a,c=9a,d=27a , 代入得 (3a+b)/(3c+d)=(3a+3a) / (27a+27a)=(6a)/(54a)=1/9 .