单选题Ⅲ. There are four choices following each statement. Mark the choice that can best complete the statement: If a linguistic study describes and analyzes the language people actually use, it is said to be （）A prescriptiveB analyticC descriptiveD linguisti

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单选题

Ⅲ. There are four choices following each statement. Mark the choice that can best complete the statement: If a linguistic study describes and analyzes the language people actually use, it is said to be （）

prescriptive

analytic

descriptive

linguistic

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相似问题和答案

第1题：

根据下面的文字资料回答 71～75 题 In the following essay．each blank has four choices．Choose the best answer and write down on the answer sheet．

Spread spectrum simply means that data is sent in（ 1 ）pieces over a number of the discrete frequencies available for use at any time in the specified range．Devices using（ 2 ） spread spectrum(DSSS)communicate by splitting each（ 3 ）of data into several parts and sending them concurrently on different（ 4 ），DSSS uses a lot of the available（ 5 ），about 22 megahertz(MHz)．

第71题：文中（ 1 ）处正确的答案是（）。

A．small

B．high

C．low

D．long

正确答案：A

简单地来说，扩频就是在一个可以随时使用的特定频率范围内，把数据用小块在大量不连续的频率上同时发送。使用直序扩频

图6网卡的简单框架
的设备相互之间通信是通过把每个字节的数据分成几个部分在不同的频率上同时传送。直序扩频使用了大约22 Mb的有效带宽。

第2题：

●In the following essay，each blank has four choices．Choose the most suitable one from the four choices and write down in the answer sheet．

Open Shortest Path First(OSPF)is a (66) routing algorithm that (67) work done on the OSI IS-IS intradomain routing protocol．This routing，as compared to distance-vector routing，requires (68) processing power．The Dijkstra algorithm is used to calculate (69) OSPF routing table updates only take place when necessary， (70) at regular intervals．

(66) A．distance-vector

B．link-state

C．flow-based

D．selective flooding

(67) A．derived from

B．deviated from

C．was derived from

D．was deviated from

(68) A．more

B．less

C．same

D．most

(69) A．routes

B．road

C．distance

D．cost

(70) A．but rather

B．rather too

C．rather than

D．rather that

正确答案：B,C,A,A,D
【解析】OSPF(Open Shortest Path First)是一个内部网关协议(Interior Gateway Protocol，IGP)，用于在单一自治系统(Autonomous System，AS)内决策路由。与RIP相对，OSPF是链路状态路由协议，而RIP是距离矢量路由协议。
链路是路由器接口的另一种说法，因此OSPF也称为接口状态路由协议。OSPF通过路由器之间通告网络接口的状态来建立链路状态数据库，生成最短路径树，每个OSPF路由器使用这些最短路径构造路由表。

第3题：

How many price choices does the man offer？

A.Three. B.Four. C.Five.

正确答案：A

第4题：

There are 15 incomplete sentences in this section. For each sentence there are four choices marked A, B, C and D. Choose one answer that best completes the sentence and blacken the corresponding letter on the Answer sheet.

6. ----Bradford graduated from college with honors at a very young age.

----He _____ have been an outstanding student.

A must B could C should D might

正确答案：A

第5题：

Directions: In each of the following groups of words, there are four underlined letters or letter combinations marked A, B, C and D. Compare the underlined parts and identify the one that is different from the others in pronunciation. Mark your answer by blackening the corresponding letter on the Answer Sheet.

1. A water B porter C daughter D laughter

正确答案：D

第6题：

Directions: There are 15 incomplete sentences in this section. For each sentence there are four choices marked A, B, C and D. Choose one answer that best completes the sentence and blacken the corresponding letter on the answer sheet.

6. ______ the look on his face, he wasn't satisfied with their performance.

A. To judge by

B. Judging by

C. Judge by

D. To be judged by

正确答案：B

第7题：

Directions: Beneath each of the following sentences there are four choices markedA,

B, C and D. Choose the one answer that best completes the sentence.

Example:

The wild flowers looked like a soft orange blanket the desert.

A. covering B. covered C. cover D. to cover

The answer is A.

21. Listen! Do you hear someone for help?

A. calling

B. call

C. to call

D. called

正确答案：A

第8题：

Section BDirections:

Beneath each of the following sentences, there are four choices marked［A］,［B］,［C］and［D］. Choose the one that best completes the sentence. Mark your answer on ANSWER SHEET 1 by blackening the corresponding letter in the brackets with a pencil. (10 points)

第11题：He is too young to be able to _______ between right and wrong.

A discard B discern C disperse D disregard

正确答案：B

选［B］。本题要求正确区别所给四个选项的意思。［A］discard，抛弃，遗弃；［B］discern，辨别，区别；［C］disperse，驱散；［D］disregard，不理，漠视。本句的句意是：他太年轻，还不能辨明是非。

第9题：

In each of the following groups of words, there are four underlined letters or letter combinations marked A, B, C and D. Compare the underlined parts and identify the one that is different from the others in pronunciation. Mark your answer by blackening the corresponding letter on the Answer Sheet.

3. A structure B mixture C gesture D mature

正确答案：D

第10题：

●In the following essay，each blank has four choices．Choose the best answer and write down on the answer sheet．

Spread spectrum simply means that data is sent in (66) pieces over a number of the discrete frequencies available for use at any time in the specified range．Devices using (67) spread spectrum(DSSS)communicate by splitting each (68) of data into several parts and sending them concurrently on different (69) ,DSSS uses a lot of the available (70) ，about 22 megahertz(MHz)．

(66) A．small

B．high

C．low

D．long

(67) A．direct-sequence

B．discrete-sequence

C．duplicate-sequence

D．dedicate-sequence

(68) A．data

B．byte

C．packet

D．bit

(69) A．bits

B．frequencies

C．packets

D．messages

(70) A．rate

B．velocity

C．bandwidth

D．period

正确答案：A,B,B,B,C
【解析】简单地来说，扩频就是在一个可以随时使用的特定频率范围内，把数据用小块在大量不连续的频率上同时发送。使用直序扩频的设备相互之间通信是通过把每个字节的数据分成几个部分在不同的频率上同时传送。直序扩频使用了大约22 Mb的有效带宽。

Ⅲ. There are four choices following each statement. Mark the

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