1、A、C显然不行,只有B、D,B意为学生的(一个,单数)D则是学生们的而那个‘s和前面的s冲突就省去了。2、C、D先删了,A为单数,只有B了。是join!浪费感情。join v.tr.To put or bring together so as to make continuous or form a unit: 连接,接合连接或接合使连成一片或成为一体:join two boards with nails; joined hands in a circle.用钉子把两块板钉在一起;手拉手围成一个圈To put or bring into close association or relationship: 使结合,缔交使…结合或联合形成密切联系或关系:were joined by marriage; join forces.结成夫妻;联合武装力量To connect (points), as with a straight line. 连接如用一条直线把(点)连接起来To meet and merge with:与…交接或汇合:where the creek joins the river.小溪与河流的汇合之处To become a part or member of: 参加,加入成为…的一部分或一成员:join a club.成为俱乐部的会员To come into the company of:和…作伴,相会:joined the group in the waiting room.和大家在会客室相会To participate with in an act or activity: 同…一起,共同参与到与…一起的行为或行动中:The committee joins me in welcoming you.委员会和我一起欢迎你To adjoin.邻接,毗邻To engage in; enter into:从事;进行:Opposing armies joined battle on the plain.两军在平原上相遇作战join v.intr.To come together so as to form a connection: 结合会合以便连接在一起:where the two bones join.两块骨头的接合处To act together; form an alliance:联合行动;结成同盟:The two factions joined to oppose the measure.两个派别联合起来抵制这项措施To become a member of a group.成为群体中一成员To take part; participate:参加;加入:joined in the search.加入搜索join n.A joint; a junction.连接处;接合点Middle English joinen中古英语 joinenfromOld French joindre joign-, join-源自古法语 joindre joign-, join-fromLatin iungere源自拉丁语 iungere*See Also : yeug- In Appendix join combine unite link connect relate associateThese verbs mean to fasten or affix or become fastened or affixed. Joinapplies to the physical contact, connection, or union of at least two separate things and to the coming together of persons, as into a group: The children joined hands. 孩子们拉起手来。Join the panels of fabric at the selvages. 把镶嵌布料沿布边缝合起来。揓oin the union, girls, and together say Equal Pay for Equal Work ?Susan B. Anthony). Combinesuggests the mixing or merging of components, often for a specific or shared purpose: “姑娘们,参加工会,一齐要求同工同酬 ”(苏姗·B·安东尼)。 Combine含有成分的相混合或融合(常常是为特定或共同的目标)的意思:The cook combined whipped cream, sugar, and vanilla to make a topping for the compote. 厨师把掼奶油、糖和香草精混合起来做成果盘的浇汁。揥hen bad men combine, the good must associate?Edmund Burke). Unitestresses the coherence or oneness of the persons or things joined: “在坏人勾结起来时,好人必须联合起来” (爱德蒙·伯克)。 Unite侧重于结合起来的人或物的协调性或一致性:Can strips of plastic be united with epoxy? 塑料带可以用环氧树脂黏合起来吗? The attack on their country united squabbling political factions in a common purpose. Link and connectimply a firm attachment in which individual components nevertheless retain their identities: 对他们国家的进攻使得互相不和的政治团体为了共同的目标团结起来。Link和 connect含有一种牢固的连接或附着的意思,但是其中每一组分仍保留其特性:linked poverty and unemployment to the social unrest besetting the city. 把使城市陷入困境的社会骚乱与贫困失业联系起来。The chief of police is in no way connected with the scandal. Relaterefers to connection of persons through marriage or kinship (警察局长与丑闻全无关系。Relate表示人通过婚姻或亲属关系联系起来(Though they have the same surname, the two are not even distantly related) or of things through logical association (虽然他们姓氏相同,这两人却没有任何亲缘关系)或者事物通过逻辑关系联系起来(The two events seem to be related). Associateusually implies a relationship of persons as partners or allies: 这两个事件似乎有关联)。 Associate通常表示人和人之间作为搭档或同盟的一种关系:His daughter is associated with him in the family business. It can also refer to a relationship of things that are similar or complementary or that have a connection in one's thoughts: 在家庭事务中他女儿和他是伙伴。它也可表示相类似的、互为补充的、或在某人思想中有关联的事物间的关系:I can forgive his bluntness because it is associated with a basic kindliness of spirit.我可以原谅他的直言不讳,因为这与一种本质上的内心善良有关join中古英语joinen〈古法语 joindre 〈拉丁语 jungere 连接在一起[dVCIn]vt, vi(常与to, together连用)结合;连结to join the ends of a rope 把绳子的两头结起来Tie a knot to join those two pieces of rope. 打个结,把这两根绳子连上。This road joins the two villages. 这条马路把两个村庄给连接起来了。使结交;联姻to join people in marriage 联姻(与in, for连用)伴;随同;与…一起Will you join me in a walk? 你愿和我一起散步吗?Will you join us for coffee? 你愿意和我们一起去喝咖啡吗?The section chief will join us for dinner.处长将和我们一起吃晚饭。参加;加入to join the Party 入党He joined the army. 他参军了。Everyone joined in the game. 每个人都参加了游戏。When did he join the cult?他何时成了一名狂热的信徒?(常与with, to连用)联合起来 会合;交接Where does the path join the road? 这条小路在哪里与大路相交?Where do the two roads join? 这两条马路在哪儿会合?join hands握手;通力合作Let us join hands in friendship.让我们携手和好吧。join in参加join up入伍,参军 (常与with连用)连接 Where do the two roads join up?这两条路在哪儿交汇?joinn相交点;连接处There's a join in this piece of material. 这块材料上有个连接点。annex attach clasp combine connect couple fasten link put together unite detach part separate join[dVCIn; dVCin]连接,“或”;〔联合〕 In relational databases, an operator in relational algebra. A join operation on two relations which share a common data item type produces a combined relation with attributes specified in the join operation.在关系数据库中,关系代数用的一种运算符。对共享一个公共数据项类型的两种关系,连接操作产生一种复合的关系,该关系具有连接操作中规定的属性。join[dVCin]vi.结合, 联合, 相遇(to; with)伴随, 一同参加, 加入(in; with)毗连, 接近从军(up)join in a game [conversation]参加游戏[谈话]Your mother joins with me in congratulating you on your wonderful scholastic attainments.你母亲和我一道祝贺你学业上的巨大成就。In this point I join with you.这一点我跟你一致。Our farms join along the river.我们的农场沿河毗连。He joined up to fight for his motherland.他参军为祖国而战。join[dVCin]vt.接合, 连接, 使结合参加, 加入, 作(团体等的)成员; 和(某人)作伴回(原岗位), 归(队)联合; 使结交, 使联姻会合, 合流[口]毗连, 接近来到, 到达, 上(船, 车, 路等)a bridge joining the opposite banks of a river把河两岸连接起来的一座桥be joined in marriage结成夫妇join the household brigade娶亲, 成婚, 成家After two days on shore the sailors joined their ship.在岸上呆了两天之后, 水手们又都回到船上。The brook joins the river.小溪同河流汇合。His house joins ours.他的家在我们的隔壁。At the next town, we joined another route.到下一个镇, 我们上了另一条路。join[dVCin]n.连接; 结合; 联合; 加入接合处[点、线、面], 接缝, 接合程序并集; 并[焊]接You can hardly see the join in the coat.你几乎看不出那件外衣的接缝。joinableadj.join hand in hand同心协力join in参加(某活动) 和...一起(做某事)join on (to)加上去, 连上去, 安装在...join oneself to加入; 归附join ...together把...连成一体join up参军 把...连接起来; 咬合, 接入(电路)join up with汇合join with和...合伙, 和...合作; 同情 和...交战[接火]continuous rail joins(接轨用)鱼尾板diagonal join对角线结合点direct join直并mill join【刷】卷筒纸接头picture join(屏幕录象中)片速帧频差均衡法reduced join约化联接join combine unite connect 都含“联合”、“结合”、“接合”的意思。join 指“任何事物的直接连接, 连接的程度可紧可松, 还能分开”之意, 如:The new highway has joined the two cities.新公路把那两个城市连接起来。combine 着重指“两个或两个以上的人或事物为了共同目的而结合在一起, 结合后原来部分可能仍不改变或失去其本性”, 如:combine milk and water把水和牛奶混在一起。unite 强调“紧密地结成一体”, 含“极难分开”之意, 如:be united as one团结一致。connect 语意较 combine 和unite 弱, 指“通过某种媒介物把事物连接起来, 原物的特征还保持”, 如:A minor road connects the highways.一条小路同几条公路相连。disjoin disconnect part separate join[ dVCin ]vi.参加, 结合, 加入vt.连接, 结合, 参加, 加入n.连接, 结合, 接合点[计] 用子目录名取代驱动器符take part in参加[与]...join inv.参加,加入attend[ E5tend ]vt.出席, 参加, 照顾, 护理, 注意vi.专心, 留意