某几个

Its shock waves spread through L'Aquila, shaking to the ground a hotel and several apartment blocks. They wrecked a university residence, trapping many students inside. The earthquake gashed solid 18th-century palazzi and shook the brickwork out of flimsy structures thrown up in the 1960s. Bridges and viaducts in the city, high up in the Apennine mountains that form Italy's backbone, were left perilously fractured.

震波穿过拉奎拉向四周传播，一家酒店和几个公寓住宅区被夷为平地；某大学宿舍区遭到破坏，多名学生被困其中；许多坚固的18世纪建筑出现了裂缝，多座建于20世纪60年代的建筑的脆弱墙体出现砌砖脱落；市内多座桥梁和高架桥断裂，这些桥梁曾连接亚平宁山区，是意大利的主干道。

To obtain the function and imbedding properties about relative countable tightness spaces,in this paper the question whether the relative countable tightness space can be adversely preserved by a closed map is studied by means of function and imbedding theories.

为了得到相对可数紧度空间的映射及嵌入性质，借助映射方法和紧化理论讨论了相对可数紧度空间被闭映射逆保持问题及嵌入紧空间问题，得到了相对可数紧度空间被闭映射逆保持的一个充分条件、局部紧的可数紧度空间可嵌入紧空间的几个充分条件以及某一类局部紧空间在任意紧化中不具有可数紧度等结果。

December 7 ,2009, in a middle school in Xiangxiang City, Hunan Province, some "naughty " students intentionally blocked the stairs, causing a serious crowdedness and trample.8 students were killed at the spot and 26 were wounded.

2009年12月7日，湖南省湘乡市某中学发生一起踩踏事故，由于几个"调皮"学生故意堵在楼梯口，导致学生在下楼过程中引发拥挤踩踏，造成8名学生当场死亡，26名学生受伤。

Borrow,lend,journal,available, out on loan, newspaper,periodical,current issues,reference books, renew,date of expiry,be overdue,be due, pay fines, return in time ,can't /mustn't lend it to others, author's name ,category,catalog,student card number , library card number ,librarian ,loan period, circulation desk ,check out , magnetically coded ,magnetize ,demagnetize ,section,newspaper section ,works,interlibrary service, reserve books.

reserve books是指将在某一段时间内比较抢手，热门的书目，资料的租借时间缩短，以便让更多的读者能够在这段时间内使用该书。比如很多同学都要使用同一本参考书来完成论文，图书馆就会reserve this book。考点：从以上任选几个特***词汇排列组合一下。

Borrow,lend,journal,available, out on loan, newspape r,periodical,current issues,reference books, renew,date of expiry,be overdue,be due, pay fines, return in time ,can't /mustn't lend it to others, author's name ,categ ory,catalog,student card number , library card number , librarian ,loan period, circulation desk ,check out , magnetically coded ,magnetize ,demagnetize ,section,newspaper section ,works,interlibrary service, reserve books.

reserve books是指将在某一段时间内比较抢手，热门的书目，资料的租借时间缩短，以便让更多的读者能够在这段时间内使用该书。比如很多同学都要使用同一本参考书来完成论文，图书馆就会reserve this book。考点：从以上任选几个特色词汇排列组合一下。

Borrow,lend,journal,available, out on loan, newspaper,periodical, current issues,reference books, renew,date of expiry,be overdue,be due, pay fines, return in time ,can't /mustn't lend it to others, author's name ,category,catalog,student card number , library card number ,librarian ,loan period, circulation desk ,check out , magnetically coded ,magnetize ,demagnetize ,section,newspaper section ,works,interlibrary service, reserve books.

reserve books是指将在某一段时间内比较抢手，热门的书目，资料的租借时间缩短，以便让更多的读者能够在这段时间内使用该书。比如很多同学都要使用同一本参考书来完成论文，图书馆就会reserve this book。考点：从以上任选几个特色词汇排列组合一下。

Borrow,lend,journal,available, out on loan, newspaper,periodical,current issues,reference books, renew,date of expiry,be overdue,be due, pay fines, return in time ,can"t /mustn"t lend it to others, authors name ,category,catalog,student card number , library card number ,librarian ,loan period, circulation desk ,check out , magnetically coded ,magnetize ,demagnetize ,section,newspaper section ,works,interlibrary service, reserve books.

reserve books是指将在某一段时间内比较抢手，热门的书目，资料的租借时间缩短，以便让更多的读者能够在这段时间内使用该书。比如很多同学都要使用同一本参考书来完成论文，图书馆就会reserve this book。考点：从以上任选几个特色词汇排列组合一下。

Borrow,lend,journal,available, out on loan, newspap er,periodical,current issues,reference books, renew,date of expiry,be overdue,be due, pay fines, return in time ,can't /mustn't lend it to others, author's name ,category,catalog,student card number , library card number ,lib rarian ,loan period, circulation desk ,check out , magnetically coded ,ma gnetize ,demagnetize ,section,newspaper section ,works, interlibrary service, reserve books.

reserve books 是指将在某一段时间内比较抢手，热门的书目，资料的租借时间缩短，以便让更多的读者能够在这段时间内使用该书。比如很多同学都要使用同一本参考书来完成论文，图书馆就会reserve this book。考点：从以上任选几个特色辞汇排列组合一下。

That should be the benefit that you did not understand DAO mode, if you are statified it is good to share, although express a structure to revise, you should revise kind also be demarcate at certain or inside a few layers, additionally a few administrative levels, insusceptible.

那应该是你没有理解DAO模式的好处，如果你分层分得好，即使表结构修改，你要修改的类也是限定于某一个或者几个层里面，另外一些层次，不受影响。

Rihoonet writes Sunsong to write that should be the benefit that you did not understand DAO mode, if you are statified it is good to share, although express a structure to revise, you should revise kind also be demarcate at certain or inside a few layers, additionally a few administrative levels, insusceptible.

rihoonet 写道sunsong 写道那应该是你没有理解DAO模式的好处，如果你分层分得好，即使表结构修改，你要修改的类也是限定于某一个或者几个层里面，另外一些层次，不受影响。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。