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[单项选择]Networks can be interconnected by different devices. In the physical layer, networks can be connected by (66) or hubs, which just move the bits from one network to an identical network. One layer up we find bridges and switches, which operate at data link layer. They can accept (67) , examine the MAC address, and forward the frames to a different network while doing minor protocol translation in the process. In the network layer, we have routers that can connect two networks. If two networks have (68) network layer, the router may be able to translate between the packet formats. In the transport layer we find transport gateway, which can interface between two transport connections. Finally, in the application layer, application gateways translate message (69) . As an example, gateways between Internet e-mail and X.400 e-mail must (70) the e-mail message and change various header fields.
A. analyze
B. parse
C. delete
D. create

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[单项选择]移行带区包含
A. 鳞柱交接以外的鳞状上皮
B. 碘试验阴性区
C. 新生的鳞状上皮及尚未被鳞状上皮取代的柱状上皮
D. 异位柱状上皮
E. 碘试验阳性区
[单项选择]我国中小学教师职业道德规范的内容与要求主要包含在两个文件之中,它们是()。
A. 《中小学教师职业道德规范》和《中小学班主任工作条例》
B. 《中华人民共和国教师法》和《中小学班主任工作条例》
C. 《中小学教师职业道德规范》和《中华人民共和国教师法》
D. 《中小学教师职业道德规范》和《幼儿园工作规程(修订稿)》
[单选题]精密进近下降到决断高(DH)时,如果不能建立目视参考,航空器应当()。
A.立即复飞
B.继续下降
C.保持(DH)飞行
D.保持(DH)至复飞点复飞
[多选题]供电企业与用户在什么情况下可以解除供用电合同()
A.由于供电能力及国家对电力供应与使用政策变化,使订立合同时的依据被取消和修改
B.不可抗力致使合同无法履行
C.双方协商同意
D.一方当事人虽无过错,但无法防止外因,致使合同无法履行
[单选题]低压验电器俗称试电笔,检测的电压范围为()。
A.25至220
B.25至400
C.60至500
D.60至600
[单选题]业务专用章按机构刻制,通过编制印章()进行区分,指定专人保管使用。
A.机构
B.种类
C.序号
D.大小
[单项选择]心肌梗死的病人哪种同工酶明显升高()
A. 乳酸脱氢酶1型同工酶
B. 乳酸脱氢酶2型同工酶
C. 乳酸脱氢酶3型同工酶
D. 乳酸脱氢酶4型同工酶
E. 乳酸脱氢酶5型同工酶
[单项选择]斑疹伤寒何时停用抗生素()
A. 体温正常即可停用
B. 体温开始下降
C. 体温正常后3~4天
D. 体温正常后7天
E. 体温正常后10天
[简答题]简述当采用牺牲阳极防腐蚀时,阳极形状与尺寸如何确定。
[多选题]《变电验收管理规定》:变电站基建工程验收竣工(预)验收环节,关于组织分工以下说法正确的是( )
A.500(330)kV及以上变电站基建工程竣工(预)验收由省公司运检部选派相关专业技术人员参加。
B.220kV变电站基建工程竣工(预)验收由省公司或地市公司(省检修公司)运检部选派相关专业技术人员参加。
C.110(66)kV及以下变电站基建工程竣工(预)验收由地市公司运检部选派相关专业技术人员参加。
D.参加中间验收工作应记录相关验收内容并存档,责任可追溯、可考核。
[单选题]( )和其他负有安全生产监督管理职责的部门对生产经营单位实施监督管理职责时,遵循坚持“有法必依.执法必严.违法必究”的原则。
A.安监部门
B.教育部门
C.文化部门
D.村委会
[多选题]下列情形中,国家可以不承担赔偿义务的是( )。
A.甲被拘留、逮捕后,经人民法院判决,其情节特别轻微,不认为是犯罪,根据《刑事诉讼法》第16条的规定判决无罪
B.侦查员乙在大街上行走,遭遇犯罪嫌疑人黄某家属辱骂,乙把黄某家属打成轻伤
C.丙因涉嫌盗窃被刑事拘留10日,后被查明不满16周岁不负刑事责任,公安机关撤销案件后将丙释放
D.丁因涉嫌盗窃罪被刑事拘留,在接受讯问时自己用头碰墙壁致伤
[不定项选择题]共用题干 The Drink Your Body Needs Most
1. Our bodies are estimated to be about 60%to 70%water. Blood is mostly water, and our mus- dles,lungs and brain all contain a lot of water. Water is needed to regulate body temperature and to provide the means for nutrients(滋养物)to travel to all our organs. Water also transports oxy-gen to our cells,removes waste,and protects our joints and organs.
2. We lose water through urination(排尿), respiration(呼吸), and by sweating. If you are very active,you lose more water than if you do not take much exercise.Symptoms of mild dehydration (脱水)include chronic pains in joints and muscles,lower back pain,headaches,and constipation
(便秘).A strong smell to your urine,along with a yellow color indicates that you are not getting enough water. Thirst is an obvious sign of dehydration and in fact,you need water long before you feel thirsty.
3 .A good rule of thumb(好的做法)is to take your body weight in pounds and divide that num- her in half. That gives you the number of ounces(盎司)of water per day that you need.For ex-ample,if you weigh 160 pounds,you should drink at least 80 ounces of water per day.If you ex- ercise you should drink another 8-ounce glass of water for every 20 minutes you are active.If you drink coffee or alcohol,you should add at least an equal amount of water. When you are traveling on an airplane,it is good to have 8 ounces of water for every hour you are on board the plane.
4 .It may be difficult to drink enough water on a busy day.Be sure you have water handy at all times by keeping a bottle for water with you when you are working,traveling,or exercising. If you get bored with plain water,add a bit of lemon for a touch of flavor. There are some brands of fla-vored water available,but some of them have sugar or artificial sweeteners that you don't need. Paragraph 2________
A.Ounces of water needed per day
B.Importance of water
C.Composition of water
D.Signs of dehydration
E.Supply of water
F.Necessity for bringing a bottle for water
[单选题]1998-47.黄芪桂枝五物汤的功用是
A.益气生脉,温经散寒
B.益气温经,散寒止痛
C.益气养血,温经通脉
D.温经散寒,养血通脉
E.益气温经,和血通痹
[单项选择]男,45岁。有动脉粥样硬化病史。突然感到剧烈刀割样胸痛2小时,向背部放射。查体发现主动脉瓣区可闻及舒张期杂音。考虑为主动脉夹层可能。下列哪一项显示内膜钙化内移效果更佳()。
A. 透视
B. 胸片
C. CT
D. DSA
E. MRI
[单项选择]依照法律、法规和国务院授权,统一监督管理全国证券期货市场的是( )。
A. 中国期货保证金监控中心
B. 期货交易所
C. 中国期货业协会
D. 中国证监会
[单项选择]场景由一个命名视图和一个或多个光源组成,如果指定了场景,RENDER将使用场景中的视图和光源信息,AutoCAD的图形文件中可建立()场景。
A. 无数个
B. 不超过20个
C. 5个
D. 3个
[判断题]博士试验中试样和亚铅酸钠混合溶液振荡后变成乳白色,颜色变深,则报告为“阳性(不通过)”-存在硫醇和/或元素硫。( )
A.正确
B.错误
[多项选择]严重下肢淋巴水肿可出现
A. 肢体增粗
B. 丹毒发作
C. 皮肤赘疣样增生
D. 溃疡
E. 残废
[单项选择]赔货货物进境,海关凭( )检验检疫机构签发的验放。
A. 检验检疫不合格证明
B. 入境货物检验检疫情况通知单
C. 用于索赔的检验证书正本
D. 《入境货物通关单》以及用于索赔的检验证书副本
[单选题]The earliest immigrants to North America found Indians already living there.The Indians numbered about 500,000 at that time.Their society was a primitive society,but they lived peacefully and welcomed the white strangers to the land.However,these early immigrants from Europe didn't want to share the land with the natives.They killed off many of the Indians,seized their land or pushed them off to lands farther away.Today the Indians,not more than half a million,live in poverty and misery on the land on which they were once masters. The earliest immigrants were the Spanish,who settled in the southern part of what is now the US.The next large group were the English,after the English came the French,Dutch,Irish,Germans,and other nationality groups,mostly European. Another early group to arrive were the Negroes.But they were brought in as slaves from Africa.They didn't win freedom till generations later. Which is the best title of this passage?
A.The Earliest People in North Americ
B.The Earliest Immigrants to North Americ
C.The People of the United State
D.Europeans were the Earliest People Coming to the North Americ
[多选题]过Q3接口,管理网可实施对接入网的哪些功能
A.运行功能
B.管理功能
C.维护功能
D.指配功能
[判断题]生产经营单位对应当淘汰的危及生产安全的落后工艺、设备,可采取加强管理和加强安全教育措施后继续使用。( )
A.正确
B.错误
[单选题]低压车用消防泵额定出口压力应小于( )MPa。
A.1.6
B. 2.5
C.3.0
D. 4.0
[单选题]500kV及以上架空线路( )以内的转角塔内外侧均应加装跳线绝缘子串。
A.10º
B.15º
C.30º
D.45º
[单选题]巯基棉富集-冷原子荧光分光光度法测定环境空气中汞含量时,取7个5m1反应瓶:配制标准系列,加入氯化汞标准使用液后,用( )mol/L盐酸-氯化钠饱和溶液稀释至5.0ml标线。
A.1.0
B.2.0
C.3.0
D.4.0
[多选题]健康保险和健康管理的合作模式包括
A.服务完全外包模式
B.服务部分外包模式
C.自行提供服务模式
D.共同投资模式
E.客户选择模式
[判断题]企业在银行办理出口信用证业务,银行给企业进行出口融资,此时名录状态为“A”,在企业收回款项时,发现企业名录状态变更为了“B”,银行针对此笔还款需要进行电子核查()
[判断题]调动乘坐旅客或装载爆炸品、压缩气体、液化气体、超限货物的车辆时,不准超过10km/h( )。
A.正确
B.错误
[单项选择]与X射线探伤相比,r射线探伤的主要特点是( )。
A. 投资少,成本低
B. 照射时间短,速度快
C. 灵敏度高
D. 操作较麻烦
[单项选择]This law ______ the number of accidents caused by children running across the road when they get off the bus.
A. intending to reduce
B. is intended to reduce
C. intended reducing
D. intends reducing
[判断题]从业人员发现直接危及人身安全的紧急情况时,不得擅自停止作业或者在采取可能的应急措施后撤离作业场所。( )
A.正确
B.错误
[单项选择]煤粉着火准备阶段内主要特征为()。
A. 放出着火热
B. 析出挥发分
C. 燃烧化学反应速度快
D. 不受外界条件制约
[单选题]趸购企业热力关口计量表在供热期内出现故障时首先()处理
A.更换新计量表
B.排查故障自行检修
C.通知售热方
D.通知热用户

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