按照逻辑结构分类，结构可以分为线性结构和非线性结构，栈属于______。

已知x＜0，-1＜y＜0，由x，xy，xy²中，最大的数是 ______； 最小的数是 ______．

两个具有不同填充色和不同边线色的封闭图形执行完“路径寻找器”（Pathfinder）中的“挖空”（Exclude）命令后，所剩部分的填充色和边线色应为：（）

A.和原来位于前面的图形的填充色和边线色相同

B.和原来位于后面的图形的填充色和边线色相同

C.是原来两个图形的填充色和边线色的混合色

D.和原来位于前面的图形的填充色相同，和位于后面的图形的边线色相同

肥厚性心肌病M型表现为（）

A.城墙样改变

B.吊床样改变

C.SAM征

D.前后叶呈六边形卡方盒状

E.鱼口状

付先生2004年购买了一套120m[²]的住房，同年8月，开发商通知付先生入住。在办理了相关入住手续后，付先生高高兴兴地领到了新房钥匙。在该小区物业服务公司员工的陪同下，付先生对新房进行验收。在验收过程中，付先生发现了好几处质量问题，物业服务公司员工将其一一记录在验房单上。于是，付先生退回了钥匙，要求待提出的质量问题解决后再来收房。
两个月后，物业服务公司以挂号信的方式通知付先生，质量问题已经彻底修好，可以收房了。一周后，付先生再次前往收房。经过验房确认，房屋质量问题已基本得到解决。于是付先生收下了新房钥匙，但是物业服务公司要求付先生交齐第一次验房到现在的物业管理费。付先生认为，应该从自己验收房子合格之日起才能收物业管理费，或者从要求自己再次验房的挂号信寄出的次日收取。因此，付先生与物业服务公司各持己见，争论不休。
请问：

物业服务公司是否应收取付先生这段时间的物业管理费为什么

Many will know that the word "muscle" comes from the Latin for "mouse" (rippling under the skin, so to speak ). But what about "chagrin", derived from the Turkish for roughened leather, or scaly sharkskin. Or "lens" which comes from the Latin "lentil" or "window" meaning "eye of wind" in old Norse Looked at closely, the language comes apart in images, like those strange paintings by Giuseppe Arcimboldo where heads are made of fruit and vegetables.

Not that Henry Hitchings’s book is about verbal surrealism. That is an extra pleasure in a book which is really about the way the English language has roamed the world helping itself liberally to words, absorbing them, forgetting where they came from, and moving on with an ever-growing load of exotics, crossbreeds and subtly shaded near-synonyms. It is also about migrations within the language’s own borders, about upward and downward mobility, about words losing their roots, turning up in new surroundings, or lying in wait, like "duvet" which was mentioned by Samuel Johnson, for their moment.

All this is another way of writing history. The Arab etymologies of " saffron ", "crimson" and "sugar" speak of England’s medieval trade with the Arab world. We have "cheque" and "tariff" from this source too, plus "arithmetic" and "algorithm"-just as we have "etch" and "sketch" from the Dutch, musical terms from the Italians and philosophical ones from the Germans. French nuance and finesse are everywhere. At every stage, the book is about people and ideas on the move, about invasion, refugees, immigrants, traders, colonists and explorers.

This is a huge subject and one that is almost bound to provoke question-marks and explosions in the margins-soon forgotten in the book’s sheer sweep and scale. A balance between straight history and word history is sometimes difficult to strike, though. There is a feeling, occasionally, of being bundled too fast through complex linguistic developments and usages, or of being given interesting slices of history for the sake, after all, of not much more than a "gong" or a "moccasin". But it is churlish to carp. The author’s zest and grasp are wonderful. He makes you want to check out everything-" carp" and "zest" included. Whatever is hybrid, fluid and unpoliced about English delights him.

English has never had its Acad mie Francaise, but over the centuries it has not lacked furious defenders against foreign "corruption". There have been rearguard actions to preserve its "manly" pre-Norman origins, even to reconstruct it along Anglo-Saxon lines: "wheel- saddle" for bicycle, "painlore" for pathology. But the omnivorous beast is rampant still. More people speak it as their second language than as their first. Forget the language of Shakespeare. It’s "Globish" now, the language of aspiration. No one owns it, a cause for despair to some. Mr. Hitchings admits to wincing occasionally, but almost on principle he is more cheerful than not.

Why does the author quote the paintings by Giuseppe Arcimboldo ？（）

A.Language is like vegetables and fruits.

B.Language is composed of various colourful elements.

C.Language can be seen as various pictures.

D.Most words in languages have their origins in vegetables or fruits.