工程开工条件检查可以通过()的方式进行。A、猜测估计 B、在现场进行检查 C、协调了

题型:多项选择题

问题:

工程开工条件检查可以通过()的方式进行。

A、猜测估计

B、在现场进行检查

C、协调了解

D、道听途说

考点:通信工程师室内覆盖系统室内覆盖系统题库
题型:多项选择题

Mr.Smith used to ____ his car to work,but now he is used to ________.

A.drive;walk

B.driving;walking

C.driving;walk

D.drive;walking

题型:多项选择题

声呐是声音的一种重要利用,声呐发出的声波碰到的目标如果是运动的,反射回来的声波(回声)的音调就会有所变化,它的变化规律是:如果回声的音调变高,说明目标正向声呐靠拢;如果回声的音调变低,说明目标远离声呐.

(1)停在某海域中执行监控任务的我海军潜艇A发出的声波信号在10s内接收到经敌潜艇B反射回来的信号,且信号频率不变,求敌潜艇B与我潜艇A的距离是多少?(设声波在海水中的传播速度为1500m/s)

(2)停在海水中的我潜艇A继续监控敌潜艇B的动向,突然接到敌潜艇B反射回来的声波频率变低,且测出敌潜艇B的速度是20m/s,方向始终在敌我两潜艇的连线上,经一分钟后敌潜艇B与我潜艇A的距离是多少?

题型:多项选择题

Towards the end of Middle English, a sudden change in pronunciation started, with vowels being pronounced shorter and shorter. From the 16th century the British had contact(联系) with people from around the world. This means that many new words and phrases entered the language. The invention of printing also meant that there was a common language in print. Books became cheaper and more people learned to read. Spelling and grammar became fixed and the dialect (方言)of London became the standard. In 1604, the first English dictionary was published.

The numbers of words in Early Modern English and Late Modern English differ. Late Modern English has a lot more words because of two main factors(因素): firstly, the Industrial Revolution created a need for new words; secondly, the British Empire covered one quarter of the earth’s surface, and the English language took in foreign words from many countries.

From around 1600, the English colonization(殖民地化)of North America resulted in the creation of American English. Some English pronunciation and words froze when they reached America. In some ways, American English is more like the English of Shakespeare than modern British English. Some expressions that the British call “ Americanisms” are in fact original (原先的)British expressions that were preserved (保存) in the colonies but were lost in Britain. Spanish also had an influence on American English, with words like canyon, ranch, stampede and vigilante being examples of Spanish words that entered English. French words and West African words also influenced American English.

Today, American English is the most influential(有影响力的). But there are many other kinds of English around the world, including Australian English, New Zealand English, Canadian English, South African English , Indian English and Caribbean English. They have differences.

小题1:What can we know from Paragraph 1?

A.The dialect of London became the standard in the year 1604.

B.Vowels were pronounced longer towards the end of Middle English

C.The first English dictionary was published in the early 17th century.

D.Many new words entered English because many people moved to Britain.小题2:From Paragraph 2, we know that the Industrial Revolution __________.

A.required spelling and grammar to be fixed

B.required a greater number of English words

C.caused many old English words to be useless

D.led to the English colonization of North America.小题3:The underlined word “froze” in Paragraph 3 shows that some English words in America___________.

A.became longer

B.greatly changed

C.a little changed

D.stayed as they were小题4:What will the paragraph following this passage most probably discuss?

A.The development of Modern English

B.How the English vocabulary became larger

C.Differences among the different kinds of English

D.Differences between Middle English and Modern English

题型:多项选择题

某商标注册人委托某印刷厂印制商标标识20万套,而印刷厂印制了25万套,该印刷厂多印制5万套商标标识的做法属______行为。

A.侵犯注册商标专用权

B.伪造他人注册商标标识

C.合法扩大业务范围

D.不侵犯注册商标专用权

题型:多项选择题

颌骨骨折主要治疗目的是

A.使骨折早期愈合
B.防止继发感染
C.恢复正常颌功能
D.使面容有最小的畸形
E.减少病人痛苦

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