| 年份 | 进出口（亿美元） | 进出口（亿元） | ||||
总额 | 出口 | 进口 | 总额 | 出口 | 进口 | |
2000 | 212.23 | 129.08 | 83.15 |
[单选题]对于CFM56-5B，如果主滑油滤堵塞（ ）
A.滑油会流经旁通活门和备用油滤 B.IDG滑油温度增加 C. 发动机滑油温度增加 [单选题]剖宫产术前准备错误的是
A.术前用盐酸吗啡止痛 B.皮肤准备 C.禁食 D.留置导尿 E.观察生命体征 [多选题]降低建弧率可采取的措施是( ).
A.增加绝缘子片数 B.减少绝缘子串上工频电场强度 C.电网中采取不接地方式 D.经消弧线圈接地方式 [单选题]HXD1电力机车水泵和油泵的运行转速是（）的
A.线性变化 B.不固定 C.固定 [多选题] 《安全生产法》规定，从业人员有权对本单位安全生产工作中存在的问题提出（）；有权拒绝违章指挥和强令冒险作业。
A.批评 B.检举 C.控告 D.疑问 E.意见 [名词解释]水系
[单选题]电缆及电容器接地前应（）放电。
A.逐相 B.充分 C.逐相充分 D.依次 [多选题]2.134.第134题
故障报修类型分为()。 A.高压故障 B.低压故障 C.电能质量故障 D.客户内部故障 [单选题]下列有关可摘局部义齿小连接体说法正确的是
A. 它与大连接体应呈锐角 B. 小连接体平行越过龈缘并缓冲 C. 位于牙齿邻间隙内的倒凹区 D. 将卡环、支托、基托等与大连接体相连接 E. 小连接体要有足够的柔软度 [单项选择]某电流互感器的变比为1500A/1A，二次接入负载阻抗5Ω（包括电流互感器二次漏抗及电缆电阻），电流互感器伏安特性试验得到的一组数据为电压120V时，电流为1安。试问当其一次侧通过的最大短路电流为30000A时，其变比误差是否满足规程要求？
A. 满足 B. 不满足 C. 无法判断 [名词解释]规多•达雷佐
[多选题]《电力用油（变压器油、汽轮机油）取样方法》中，关于油中水分含量测定和油中溶解气体分析用注射器的要求说法正确的是（ ）。
A.气密性好 B.芯塞无卡涩 C.芯塞可自由滑动 D.绝缘性好 [单项选择]颠茄的禁忌证是（）
A. 颅内压增高、脑出血急性期、青光眼、幽门梗阻、肠梗阻及前列腺肥大禁用 B. 新鲜眼底出血、恶性肿瘤患者及哺乳期妇女禁用 C. 12岁以下儿童禁用 D. 前列腺肥大、青光眼、心动过速患者及哺乳期妇女禁用 [多项选择]隔姜灸的作用主要是
A. 回阳救逆 B. 温阳补肾 C. 温胃止呕 D. 散寒止痛 [多选题]收集物证时，重点区域包括（ ）。
A.座椅下方 B.垃圾桶 C.洗手间 D.座椅附近地板 [单项选择]装盛原油及重质油品罐车弹性变形较轻，其弹性变形引起平均计量误差可按（）估算.
A. ±0.25% B. ±0.215% C. ±0.225% D. ±0.20% [判断题]施用有机肥不仅能为农作物提供全面营养，而且肥效长，可增加和更新土壤有机质，催进微生物繁殖，改善土壤的理化性质。（ ）
A.正确 B.错误 [单选题]DME测试询问器可以对信标的7个参数进行测量，下面哪一个不是（ ）。
A.A、信标的固定延时 B.B、寂静时间 C.C、信标的最大应答率 D.D、应答射频脉冲的峰值功 [单项选择]Severe inequalities in children’s development between local authorities are revealed by data published by Sir Michael Marmot, professor of epidemiology (流行病学) and public health at University College London, who last year produced a landmark government review into how wealth affects health. The key determinants of health, he argues, relate to a host of issues including employment, the welfare state and child development. His new report shows that 44% of all five-year-olds in England are considered by their teachers to be falling behind in their development. However in richer commuter towns, such as Solihull and Richmond upon Thames, state schools report this figure to be about 30%. In Haringey, a deprived part of north London, it is almost double.
Only two dozen authorities of the 150 surveyed could claim to have more than half their five-year-olds passing the educational standard set by the government. Marmot said he was concerned that the government was just focusing on the "poor A. public health being put under local authority control B. public health being put under the control of the NHS C. obvious differences in people’s income disappearing D. budgets on public health being cut down by the NHS [多选题]试验周期为半年的安全工器具有：（ ）
A.验电器 B.绝缘杆 C.绝缘靴 D.绝缘手套 [单项选择]下面有关生活质量（QOL）的叙述哪一项是错误的（）
A. 是一个主观概念及指标 B. 涉及躯体、心理、社会、精神及职业等方面 C. 因时间、地点、文化、价值等因素而变化 D. 目前还不能评估和测定 E. 在临床研究及实践中的作用日益重要，作为肿瘤防治的重要目标和终点之一 [单项选择]高温煤沥青的软化点应大于( )。
A. 90～100℃ B. 95～110℃ C. 95～120℃ D. 100～120℃ [多选题]关于变压器的序阻抗说法正确的是:()
A.变压器的漏抗,反映了原、副方绕组间磁耦合的紧密情; B.变压器的励磁电抗,取决于主磁通路径的磁导; C.变压器的零序励磁电抗与变压器的铁芯结构紧密相关; D.变压器的序阻抗都一样。 [单选题]在Excel数据透视表的数据区域默认的字
段汇总方式是().
A.A:平均值 B.B:乘积 C.C:求和 D.D:最大值 [不定项选择题]共用题干
Successful Language Learners
1.Some people seem to have a knack for learning languages.They can pick up new vocabulary,master rules or grammar,and learn to write in the new language more quickly than others.They do not seem to be any more intelligent than others,so what makes language learning so much easier for them?Perhaps if we take a close look at these successful language learners,we may discover a few of the techniques which make language learning easier for them. 2.First of all,successful language learners are independent learners.They do not depend on the book or the teacher;they discover their own way to learn the language.Instead of waiting for the teacher to explain,they try to find the patterns and the rules for themselves.They are good guessers who look for clues and form their own conclusions.When they guess wrong,they guess again.They try to learn from mistakes. 3.Successful language learning is active learning. Therefore,successful learners do not wait for a chance to use the language;they look for such a chance.They find people who speak the language and they ask these people to correct them when they make a mistake.They will try anything to com-municate.They are not afraid to repeat what they hear or to say strange things;they are willing to make mistakes and try again.When communication is difficult,they can accept information that is inexact or incomplete.It is more important for them to learn to think in the language than to know the meaning of every word. 4.Finally,successful language learners are learners with a purpose.They want to learn the language because they are interested in the language and the people who speak it.It is necessary for them to learn the language in order to communicate with these people and to learn from them.They find it easy to practice using the language regularly because they want to learn with it. 5.What kind of language learner are you?If you are a successful language learner,you have probably been learning independently,actively,and purposefully.On the other hand,if your language learning has been less than successful,you might as well try some of the techniques outlined above. Paragraph 3_________. A.Ways to learn a language successfully. B.Learning a language purposefully. C.Learning a language actively. D.Learning a language independently. E.Learning from mistakes. F.Learning to think in the target language. 我来回答: 提交
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