油浸式限流电抗器的线圈，当通以额定短路电流时，铝导线的最高温度和电流最少持续时间应为

某轮大量装载后其吃水差t=0，由此可以得出以下（）结论。

A．装载后船舶重心在正浮时浮心之后

B．装载后船舶重心在正浮时浮心之前

C．装载后船舶重心与正浮时的浮心共垂线

D．装载后船舶重心正浮时的漂心共垂线

在通信技术中，通信信道有点—点通信信道和______通信信道两类。

阅读下面的文言文，完成下面问题。

　　县人冉氏，有狗而猛。遇行人，辄搏噬之，往往为所伤。伤则主人躬诣谢罪，出财救疗之。如是者数矣。冉氏以是颇患苦狗；然以其猛也，未忍杀，故置之。

　　刘位东^①谓余曰：“余尝夜归，去家门里许。群狗狺狺吠，冉氏狗亦迎面吠焉。余以柳枝横扫之，群狗皆远立，独冉氏狗竟前欲相搏，几伤者数矣。余且斗且行，过冉氏门而东，且数十武，狗乃止。当是时，身惫甚，幸狗渐远，憩道旁，良久始去，狗犹望而吠也。既归，念此良狗也。藉令有仇盗夜往劫之，狗拒门而噬，虽数人，能入咫尺地哉！闻冉氏颇患苦此狗，旦若遇之于市，必嘱之使勿杀。此狗累千金不可得也。居数日，冉氏之邻至。问其狗，曰：‘烹之矣。’惊而诘其故，曰：‘日者冉氏有盗，主人觉之，呼二子起，操械共逐之，盗惊而遁。主人疑狗之不吠也，呼之不应，遍索之无有也。将寝，闻卧床下若有微息者，烛之则狗也。卷屈蹲伏，不敢少转侧，垂头闭目，若惟恐人之闻其声息者。主人问：嘻！吾向之隐忍而-不之杀者，为其有仓卒一旦之用也，恶知其搏行人则勇，而见盗则怯乎哉！以是故，遂烹之也。’”

　　嗟乎！天下之勇于搏人而怯于见贼者，岂独此狗也哉？今夫市井无赖之徒，平居使气，暴横闾里间；或窜名^②县胥，或寄身营卒，侮文弱，凌良懦，人皆遥避之。怒则呼其群，持械圜斫之，一方莫敢谁何，若壮士然。一旦有小劫盗，使之持兵仗，入府廨，防守不下百数十人。忽厩马夜惊，以为贼至，手颤颤，拔刀不能出鞘；幸而出，犹震震相击有声。发火器，再四皆不然。闻将出戍地，去贼尚数百里，距家仅一二舍，辄号泣别父母妻子，恐不复相见，其震惧如此。故曰勇于私斗而怯于公战又奚独怪于狗而烹之嘻过矣！

　　虽然，畜猫者，欲其捕鼠也；畜狗者，欲其防盗也。苟其职之不举，斯固无所用矣，况益之以噬人，庸可留乎？石勒欲杀石虎^③，其母曰：“快牛为犊，多能破车，汝小忍之。”其后石氏之宗，卒灭于虎。贪牛之快而不顾车之破，尚不可；况徒破车而牛实不快乎？然而妇人之仁，今古同然。由是言之，冉氏之智，过人远矣。（本文有删节）

　　[注）①刘位东：人名，崔述的朋友。②窜名：冒领空名。③石勒：人名，后赵人。石虎：石勒侄。 1．对下列语句中加粗的词的解释，不正确的一项是（     ）

A．苟其职之不举——举：称

B．再四皆不然——然：这样

C．烛之则狗也——烛：照

D．且数十武——武：步

2．下列各组语句中，加粗的词的意义和用法相同的一组是（     ）

A．余以柳枝横扫之——然以其猛也

B．旦若遇之于市——卒灭于虎

C．过冉氏门而东——贪牛之快而不顾车之破

D．主人疑狗之不吠也——若惟恐人之闻其声息者

3．以下语句分别编为四组，全都说明冉氏烹狗原因的一组是（     ）

①遇行人，辄搏噬之，往往为所伤 ②恶知其搏行人则勇，而见盗则怯乎哉

③狗拒门而噬，虽数人，能人咫尺地哉 ④独冉氏狗竟前欲相搏，几伤者数矣

⑤伤则主人躬诣谢罪，出财救疗之 ⑥县人冉氏，有狗而猛

A．①②③

B．③④⑥

C．①②⑤

D．④⑤⑥

4．下列对原文有关内容的分析和概括，不正确的一项是（     ）

A．作者对冉氏烹狗的行为虽然表示理解但并不赞赏。

B．刘位东因冉氏狗虽凶猛但可“防盗”而欲劝其勿杀。

C．作者借“冉氏烹狗”一事抨击了那些市井无赖之徒。

D．石勒听从母亲的劝告未杀石虎，结果石氏反受其害。

5．将文言文阅读材料中加粗的部分用“／”断句。

　 故曰勇于私斗而怯于公战又奚独怪于狗而烹之嘻过矣！

6．将文言文中画横线的句子翻译成现代汉语。

（1）冉氏以是颇患苦狗。

　____________________________________________________________

（2）吾向之隐忍而不之杀者，为其有仓卒一旦之用也。

　____________________________________________________________

In our society, we must communicate with other people. A great deal of communicating is performed on a person-to-person (1) by the simple means of speech. If we travel in buses, stand in football match (2) , we are likely to have conversations (3) we give information or opinions, and sometimes have our views (4) by other members of society.

Face-to-face contact is (5) the only form of communication, and during the last two hundred years the (6) of mass communication has become one of the dominating factors of contemporary society. Two things, (7) others, have caused the enormous growth of the communication industry. Firstly, inventiveness has (8) advances in printing, photography and so on. Secondly, speed has revolutionized the (9) and reception of communications so that local news often (10) a back seat to national news.

No longer is the possession of information (11) to a privileged minority. Forty years ago people used to (12) to the cinema, but now far more people sit at home and turn on the TV to watch a program that (13) into millions of houses. Communication is no longer merely concerned (14) the transmission of information. The modern communications industry influences the way people live in society and broadens their horizons by allowing (15) to information, education and entertainment. The printing, broadcasting and advertising industries are all (16) with informing, educating and entertaining. (17) a great deal of the material communicated by the mass media is very valuable to the individual and to the society (18) which he is a part, the vast modern network of communications is (19) to abuse. However, the mass media are with us for better, for worse, and there is no turning (20) .

5（）

A.by some means

B.by any means

C.by no means

D.by all means

封液环前端填料环过多不会引起填料泄露。