在EXCEL中，如果A1：A4包含的数字分别为2、4、6、8，则AVERAGE（A1

我国很早就出现原始的农耕，是世界上最早种粟的国家，这要感谢的原始居民是（ ）

A．元谋人

B．北京人

C．河姆渡人 　　

D．半坡人

第二节：（共5小题；每小题2分，共10分）

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

Linguistic（语言学的） Puzzles

How did language begin? What was the world's first language? Do all languages come from one, original language?   71 .

In the 4th century BC, the Greek historian Herodotus wrote this account: Psamtik I an Egyptian King, wanted to find out what the oldest language in the world was．  72 ．He told his servant to find two newborn babies．When the servant had found them, the king gave them to a shepherd （牧羊人） and said, "Keep these babies with the goats．Take care of them, but do not talk to them．Listen for any words that they say．" The king wanted to find out what language the children would speak if they were left alone．He said, "The first words they speak will come from the original language of the world．"

_73  ． He told the king．who asked his scholars about this word．They told him that the Phiygians, who lived in an area which is now Turkey, called bread "becos．" The king said, "Then Phiygian is the oldest language．" Today we know that the king's conclusion was wrong．We don't know why the children said "becos"．

74 . Scholars discovered that many European and southern Asian languages belonged to the same "family" and that they started from the same parent language, Proto-Indo-European．Linguists think that it had split into several different languages, including Greek and Sanskrit, between 2000 and 1000 BC．Other languages, such as English and Spanish, developed from later splits．

75_  . Two questions that interest linguists are: How does language change? Why does language change? If you like solving mysteries, historical linguistics may be the job for you．

A．Nowadays, we study the origin of language more scientifically

B．He was talking about this problem with his scholars when he had an idea

C．The King was very kind to his servant and his servant remained royal to him

D．Linguists are the scholars who are very interested in categorizing the language families

E．People have been trying to find the answers to these questions for more than 2 ,000 years

F．One day, while the babies were babbling to each other, the shepherd heard them say "becos"

G．Linguists have classified many language families, and they are still trying to categorize others

— I called you at six yesterday, but there was ______ answer.

— Did you? I ______ dinner at my friend's home.[ ]

A: not an; had

B: no; was having

C: not; was having

D: no; had

变压器哪些事故情况下允许联系处理，有备用变压器者应先倒备用变压器运行？

申报无公害畜产品应当以一体化作为主要申请形式，（）和生鲜牛乳类可以只申请无公害畜产品产地。

A.猪肉

B.活畜禽类

C.乳制品

D.鸡蛋