昆虫的头部着生有哪些附器？因此昆虫的头部的功能是什么？

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。选项中的两项为多途选项。

November 30th, 2008

A few weeks ago, we talked about the Test of English as a Foreign Language, or TOEFL. A listener in Cambodia named Thida asks if American colleges and universities also accept the IELTS exam. IELTS is the International English Language Testing System. It was developed by University of Cambridge ESOL Examinations.

Cambridge University

Cambridge ESOL says the test measures true-to-life ability to municate in English for education, immigration or employment. The IELTS tests listening, reading, writing and speaking skills. It uses a mixture of accents and spellings, including British English and American English.

The test is used by government agencies, schools and professional organizations in one hundred twenty countries. ___小题1:___ Many American schools that accept the IELTS can be found on the Web at ielts.org.

___小题2:__. But the graduate school at Duke University in Durham, North Carolina, for example, says it prefers the IELTS.

The listening and speaking parts are the same for everyone who takes the IELTS. But people have a choice of reading and writing tests--- either academic or general training. The listening test takes thirty minutes. ____小题3:_____ .

The reading test takes sixty minutes. Students answer forty questions based on three written passages.

The writing test also takes sixty minutes. Students have to write two essays. One essay has to be at least one hundred fifty words long and the other at least two hundred fifty words. ____小题4:_____; the longer one has to support an argument.

____小题5:______.The score is based on a recorded talk between the student and a test examiner.

A．IELTS is a prehensive test of your English proficiency.

B．And, yes, that includes the United States.

C．The shorter one is a description of something.

D．Some schools accept both the TOEFL and the IELTS.E. These language skills are increasingly demanded by international employers,

education institutions and professional associations.

F. There are forty questions based on a recording.

G. The speaking test takes less than fifteen minutes

以下不是复发性流产原因的是（）

A.夫妇一方轻型地中海贫血

B.黄体功能不全

C.宫颈功能不全

D.血栓前状态

E.甲状腺功能低下

互联网业务通常被归纳为四大类：信息、沟通、娱乐和交易。在中国市场中，本土企业在全部4个领域中均占主导地位，但与欧美等国互联网市场商务功能更加发达不同，中国互联网市场呈现出更多的娱乐化特征。这与中国网民早期的需求密不可分。CNNIC调查显示，目前娱乐、信息获取和交流沟通这3类网络应用在中国网民中的普及率均已超过50%。
对本段文字主旨理解最准确的一项是( )。

A．中国本土企业在国内互联网市场占主导地位
B．中国互联网市场的娱乐功能更加发达
C．中国网民的需求主导了互联网市场的发展方向
D．国外企业与国内企业在中国互联网市场的功能侧重点不同

计算机网络是计算机与（）结合的产物。

A.电话

B.通信技术

C.线路

D.各种协议

边坡放样属于下列哪一种放样（）。

A、中线放样

B、横断面放样

C、纵断面放样

D、高程放样