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[填空题]在数据库设计器中设计表之间的联系时,要在父表中建立【 】,在子表中建立【 】。

热门试题:

[多项选择]以下哪些属于Bartle提出的四种玩家类型()。
A. 探索型玩家
B. 社会交形玩家
C. 休闲型玩家
D. 成就型玩家
[多项选择]土地的界线包括( )等,
A. 边界的走向
B. 基本形状
C. 长度
D. 转折点
E. 边界的分割物
[单项选择]在平衡二叉树中,()。
A. 任意节点的左、右子树节点数目相同
B. 任意节点的左、右子树高度相同
C. 任意节点的左、右子树高度之差的绝对值不大于1
D. 不存在度为1的节点
[判断题]扫选泵池来料只有粗选泡沫。( )
A.正确
B.错误
[单项选择]I regret ______ those insulting words at the conference.
A. saying
B. to say
C. says
D. said
[单选题]公司采用较高的信用标准,将会导致的结果是(  )。[2009年初级真题]
A.增加违约风险
B.增加销售收入
C.增加坏账成本
D.降低收账费用
[单选题]CRH1A使用北京赛德公司的 型单臂受电弓。
A.DSA200
B.DSA250
C.DSA300
D.DSA350
[填空题] From childhood to old age, we all use language as a means of broadening our knowledge of ourselves and the world about us. When humans first 【B1】, they were like newborn children, unable to use this 【B2】 tool. Yet once language developed, the possibilities for human kind’’s future 【B3】 and cultural growth increased. Many linguists believe that evolution is 【B4】 for our ability to produce and use language. They 【B5】 that our highly evolved brain provides us 【B6】 an innate language ability not found in lower 【B7】. Proponents of this innateness theory say that our 【B8】 for language is inborn, but that language itself develops gradually, 【B9】 a function of the growth of the brain during childhood. Therefore there are critical 【B10】 times for language development. Current 【B11】 of innateness theory are mixed, however, evidence supporting the existence of some innate abilities is undeniable. 【B12】, more and more schools are discovering that foreign languages are best taught in
A. A.reviews
B.reference
C.reaction
D.recommendation

[单项选择]湿式煤电钻是在煤巷、半煤巷实施湿式钻眼的理想设备,钻眼产生的粉尘浓度低于(),符合煤矿生产的实际要求。
A. 5mg/m³
B. 5mg/m³
C. 5mg/m³
D. 5mg/m³
[简答题]参加禅修一定要克期求证吗?
[单项选择]要求两个电器不能同时工作,当其中一个工作时另一个必须不工作,这种控制关系称()
A. 连锁控制
B. 互锁控制
C. 自锁控制
D. 连续控制
[判断题]承包单位可以将其承包的全部工程转给具有独立法人资格的子公司施工。
A.正确
B.错误
[判断题]一般来说,产品或系统的结构越复杂、零部件数量越多,使用越复杂,越容易发生故障。
[多选题]美国金融消费者保护局的主要职责包括(  )。
A.加强消费者金融教育
B.适当提高投资门槛
C.对向消费者提供按揭贷款的金融机构实施行为监管
D.制定全国通用的住房抵押贷款最低标准
E.制定并执行反欺诈和不公平行为的规则
[多选题]《商业银行理财业务监督管理办法》商业银行全部理财产品投资于非标准化债权类资产的余额在任何时点均不得超过理财产品净资产的(),也不得超过本行上一年度审计报告披露总资产的()。
A.35%
B.4%
C.25%
D.0.5
[简答题]写出完成下列功能的DOS命令,其中DOS的所有外部命令在C:///DOS目录下。紧缩显示当前目录下的目录及文件名清单。(包括系统、隐藏属性)
[单项选择]Who is probably the woman
A. Ken’s wife.
B. Ken’s neighbor.
C. The head of file math department.
[判断题]立杆过程中,所有人员必须远离杆下1.2倍杆高的距离。()
A.正确
B.错误
[判断题] 174损失电量占售电量的百分比成为线路损失率,简称线损率
A.正确
B.错误
[多项选择]金银花的鉴别特征是()。
A. 花粉粒球形,外壁有细密短刺及圆形颗粒状雕纹。
B. 腺毛两种。
C. 非腺毛两种
D. 小簇晶
E. 方晶
[单项选择]

患者,女性,18岁,3天来右下后牙阵发性疼痛,冷、热刺激加重疼痛,夜间疼痛加剧,半年前右下后牙有过类似疼痛,服索米痛片缓解,检查发现患者痛苦表情,右下后牙龋洞较大,洞内有较多食物残渣,去之发现穿髓,浅探不敏感,深探剧痛,咬合痛。

如果临床检查也发现右上后牙有深而穿髓的龋洞,探诊也发生剧痛,使用什么方法进一步判断急性疼痛的牙来自上颌或下颌( )
A. 冷、热诊试验
B. 局部麻醉法
C. 叩诊
D. 牙髓电活力试验
E. X线摄片
[判断题] 根据《用电业务受理员》题库,业扩报 装服务指标有: 供电方案答复期限、客户装表接 电期限、除居民客户外的其他客户回访率。 ( )
A.正确
B.错误
[单选题](B737ng)关于B737NG的AMM中101-199页码内容说法正确的是
A.B737NG没有101-199页
B.用于排故
C.用于部件定位
D. B&C对
[单项选择]

Text 4
"My very educated mother just served us nine pizzas." Many American school children are taught this sentence to help them remember the order of the planets of the solar system. Soon though, this may change because, on July 29th, a team of astronomers announced the discovery of a very distant celestial body larger than Pluto. The researchers claim that the new body--which they are informally calling Xena--should be classified as a planet.
The new body--temporarily named 2003UB313--orbits the Sun once every 560 years. It is currently over 14 billion kilometres away, about three times farther out than Pluto, making it the most distant object ever discovered in the solar system. The researchers think it is part of the Kuiper belt, a ring of rocky objects that extends beyond Neptune.
Mike Brown of the California Institute of Technology, Chad Trujillo of the Gemini Observatory and David Rabino witz of Yale University discovered the object
A. On July 29th, 2005.
B. In October 2003.
C. In January 2005.
D. On March 13th, 2003.

[填空题]电报有4个等级:“特提”“特急”“加急”“( )”。
[单项选择]工件表面的硬度强化技术是通过一定的工艺手段,进一步提高工件表面的硬度,强度耐磨性,耐腐蚀性等,这些相应的()就是工件表面强化技术。
A. 方案
B. 技术方法
C. 措施
D. 工艺方法
[单选题]在银联小额免密白名单商户,福建农信云闪付产品在( )元以内无需输入密码并在签购单上签字。
A.100
B.300
C.1000
D.3000
[填空题]从新车到大修或大修到大修之间所行驶的里程限额,叫()定额。
[判断题]LPG、CNG罐车发生事故,无论罐体是否泄漏、着火,都不可以对罐体出水冷却降温。
A.正确
B.错误
[判断题]A-C-002311
擅自发车、开车、停车、错办通过或在区间乘降所错误通过,属一般C类事故。
A.正确
B.错误
[单选题]下列护理诊断属于医护合作性问题的是
A.气体交换受损:与肺淤血、肺水肿有关
B.便秘:与长期卧床有关
C.有皮肤完整性受损的危险:与长期卧床有关
D.知识缺乏:缺乏有关糖尿病自我护理的知识
E.潜在并发症:心律失常
[多项选择]设计合同中属于发包方的义务包括( )。
A. 明确设计范围和设计深度
B. 提供设计预算文件
C. 提供必要的现场工作条件
D. 向施工单位进行设计交底
E. 办理设计阶段成果的报批手续
[单选题]线路大修施工由( )建立长轨条技术资料表。
A.调度
B.施工单位
C.工务段
D.工务部
[单项选择]人力资源规划是为了()雇佣外围员工的需求。
A. 增加
B. 减少
C. 维持
D. 改变
[判断题]地址成因岩石可划分为岩浆岩、沉积岩、片麻岩三大类。()
[单项选择]

在广泛听取群众意见的基础上,2011年2月25日,十一届全国人大常委会决定通过刑法修正案(八)。该修正案首次将飙车、醉驾、拒不支付劳动报酬等严重危害群众利益的行为规定为犯罪。这表明()。
①人大常委会是我国的立法机关
②政府要加强依法行政
③全国人大常委会行使决定权
④人民群众能够参加国家管理


A. ①③
B. ②③
C. ①④
D. ④
[单项选择]
{{B}}TEXT B{{/B}}

Although the top men in smuggling business must work together, most of a syndicate’s small fry, especially the mules, know only their immediate contacts. If caught, there is little they can give away. A mule probably will not even know the name of the person, who gives him his instructions, nor how to get in touch with him. Usually he even does not know the person to whom he has to make delivery. He will be told just to sit tight in a certain hotel or bar until someone contacts him. In this way if he is blown, coming through airport customs, he cannot unwittingly lead agents to the next link in the chain. All the persons at the receiving end do is to hang around the airport among the waiting crowd, and see that the mule comes through safely. If he does not, he is dimply written off as a loss. To make identification of mules easier, several syndicates have devised their own "club ties" so that a mule wearing one can
A. A person who sends smuggling goods for a syndicate is called mule.
B. A person in charge of smuggling goods is called mule.
C. A person who makes delivery for a syndicate is called mule.
D. A person who receives instructions from a smuggler is called mule.

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