热门试题:
[简答题]声屏障的结构形式有吸声式结构和 （ ）结构。
[单项选择]根据现行普查项目安排，2013年我国将进行（）。
A. 人口普查
B. 农业普查
C. 经济普查
D. 工业普查
[单项选择]部分不良商家为提高价钱而谎称所售牛肉为进口牛肉，截至2014年12月31日，下列哪个国家并未获准向中国出口牛肉？（）
A. 日本
B. 澳大利亚
C. 新西兰
D. 加拿大
[单项选择]属于main（ ）方法的返回类型是【 】
A. public
B. static
C. void
D. main
[判断题]一个完整的尺寸,一般由尺寸界线、尺寸线和尺寸数字组成。( )
A.正确
B.错误
[多选题] 2020年我国成功举办()
A. 第二届中国国际进口博览会
B. 第三届中国国际进口博览会
C. 中国国际服务贸易交易会
D. 全国服务贸易交易会
[单项选择]不确定性最高、对组织管理挑战最大的组织外部环境是（）
A. 复杂稳定的环境
B. 复杂动态的环境
C. 简答稳定的环境
D. 简答动态的环境
[单选题]指出消防联动控制器对电梯控制和显示的正确选项是：( )。
A.不能控制所有电梯全部降回首层
B.不能控制非消防电梯开门停用
C.不能显示消防电梯运行时所在楼层
D.能显示消防电梯的故障状态和停用状态
[多选题]心境障碍，可有以下哪些表现
A.情感高涨
B.情感低落
C.有认知和行为改变
D.可有精神病性症状
E.有反复发作倾向，发作间期多可缓解
[填空题]
How Girls Can Win in Math and Science
[A] Math is a cumulative subject, unlike say history, which can be learned in discrete units. College
algebra (代数) is basically a course in the language of mathematics. Some might say that algebra is the mechanics of mathematics. The examples included at this level are simple, designed to reinforce that the student has learned the "how". The next layer of courses teaches how to use this language, or this set of tools, to describe and model the real world. Being able to do this should leave no doubt in the student’s mind that they are mathematically competent.
[B] For years, feminists have
lamented (悲叹) the sorry state of girls in math and science, as they lag behind their male peers in test scores and shy away from careers in engineering and technology. Yet perhaps the most frustrating recent development on the topic is that some of the very programs designed to help girls g
[简答题]离体无性繁殖中，培养物的增殖方式有哪几种？各有何特点？
[单项选择]针对真菌性角膜溃疡的检查技术中，作为非侵入性检查手段可在疾病早期阶段直接发现病灶内的真菌病原体的是（）
A. 角膜刮片Giemsa染色
B. 10％～20％氢氧化钾湿片法
C. 角膜刮片真菌培养
D. 角膜活检
E. 共焦显微镜检查
[判断题]行李、包裹到达到站后，在规定的免费保管期限内应在票面指定的到站行李房保管，不得易地保管。
A.正确
B.错误
[判断题]一般来说，刺激物强度越小，注意就越模糊
A.正确
B.错误
[不定项选择题]共用题干
Brain Drain
1.Brain drain is a phenomenon under which"people of a nation move to another nation due to financial benefits and also due to economical reasons,but there are many more reasons behind it". If we think deeply to the topic,we would find that this phenomenon has more disadvantages than advantages.
2.This phenomenon has many advantages for receiving countries which will automatically benefit from the skills and talents of immigrated people who were educated and qualified in their home countnes.
3.However,developing countries are deeply affected by this phenomenon since they are deprived from millions of their skilled workers, doctors,hardworking Engineers,and billions of man power. Those elites represent the backbone of their economies and once they travel abroad,their economies will not flourish and promote.In fact,there are many reasons behind brain drain.Firstly,the Government is the first responsible for brain drain. The salaries paid by local companies are much less than multinational foreign companies,which pushes millions of intelligent,hardworking Engineers to leave their native countries to look for a better life and opportunities.Secondly,the status and facilities provided by foreign companies are much higher in quality and quantity.Also,some people find it a matter of pride and dignity to work as an employee in foreign countries.
4.But we have to mention that brain drain does not only affect developing countries but also has some advantages for them.People living abroad help foreigners to know about their cultures and traditions.Also,they give information about various natural beauties and tourist spots in their home countries,which encourages tourists to visit them. This in turn increases tourist income.Brain drain also helps in increasing their foreign exchanges.
5.But at last you would find that brain drain has more disadvantages than advantages on developing or poor countries.So,to stop brain drain,local governments should make people aware of its harmful effects.Also Government should provide opportunities to their elites and should provide them with handsome salary so that they can serve their own mother nation.
Paragraph 3______
A.Harmful effects of brain drain on developing countries.
B.Brain drain in developing countries.
C.Strategies governments can use to curb brain drain.
D.Good effects of brain drain on receiving countries.
E.Brain drain and elites.
F.Benefits brain drain brings to developing countries.
[单选题]生产经营单位委托其他有专业资质的单位进行危险作业的,应当在作业前与受委托方签订安全生产管理协议,明确各自的( )职责。
A.安全生产管理
B.人员管理
C.设备管理
D.资金管理
[多选题]服务质量规范中规定车站客运人员十不准内容包括：（ ）。
A.不高声喧哗
B.嬉笑打闹
C.勾肩搭背
D.不对旅客评头论足
[判断题]凡是新(扩、改)建的送变电工程项目的质量必须经过电力建设质量监督机构审查认可，否则严禁启动试运。
A.正确
B.错误
[单项选择]真武汤的组成药物中含有( )
A. 芍药
B. 桂枝
C. 桔梗
D. 干姜
E. 陈皮
[判断题]1123提高低压线路运行电压,使低压线路的电能损失增大,在使众多的低压电能表的电能损失增大,因此提高低压线路运行电压不会减少低压线损。 ( )
A.正确
B.错误
[单项选择] Questions 14-17 are based on the following dialogue between husband and wife about their unpleasant trip. You now have 20 seconds to read Questions 14-17.What did Mr. Smith complain about in his letter
A. The food and the transport means.
B. The manager of the travel agency.
C. The hotel and travel arrangements.
D. The journey home.
[单项选择]It is true that electricity has been found world-wide application since it was discovered．
A. 电自从被发现以来就已得到世界上广泛的申请，这点毫无疑问。
B. 事实上，电自从被发现以来已经得到全世界范围的应用。
C. 电自从被发现以来已经得到全世界范围的应用，这一点是正确的。
D. 事实上，电一被发现就已在全世界范围内得到了广泛应用。
[单选题]计算机能按照人们的意图自动、高速地进行操作,是因为采用了( )。
A.程序存储在内存
B.高性能的CPU
C.高级语言
D.机器语言
[单选题]75%酒精属于什么类型的消毒剂
A.高效消毒剂
B.中效消毒剂
C.低效消毒剂
[多选题]使用绳索进行训练时,承载的绳索在接触建(构)筑物的转角处必须设置()。
A.护垫
B.护具
C.安全员
D.观察员
[判断题]《铁路旅客运输规程》第五条中规定，通票是指从发站至到站不需中转换乘的车票。（ ）
A.正确
B.错误
[填空题]比较常用的数据挖掘方法有三种： 【6】 、分类分析及聚类分析。
[填空题]正弦交流电的三要素是指最大值、(角频率)和初相位
[单选题]Windows2000成员服务器上创建了一个本地用户，要指定该用户只能在指定时间登录，用哪个用户属性对话框配置时间？（ ）
A.账号标签
B.配置文件标签
C.常规标签
D.不能限制本地用户账号的登录时间
[单选题]新民主主义革命是无产阶级领导的、人民大众的、反对帝国 主义、封建主义、( )的革命。
A.官僚资本主义
B.资本主义
C.殖民主义
D.一切反动派
[填空题]Mental health and emotional health now become daily concern. The (47) in which a person deals with everyday life is called that individual’s mental health. A person with good mental health has high self-esteem and is able to be part of (48) relationships. A person who is mentally healthy mast be (49) healthy. People who are both mentally and emotionally healthy have a sense of control, have the ability to endure difficulties, can see things in a (50) way, and can express emotions in a healthy way.
Mentally and emotionally healthy people are more (51) to become the best they can be. A famous (52) named Abraham Maslow made a hierarchy of needs. He said these (53) had to be (54) in order for that to happen and so the person can get the most out of life. A person has to have food, water, sleep, and exercise. Then the person needs shelter. A person needs love, affection, and acceptance. Then the person needs sel
[单选题]运行揭示调度命令是指由调度所施工调度发布的涉及限速、（ ）和设备变化的调度命令。
A.控车模式变化
B.基础数据错误
C.行车方式发生变化
D.基础数据更新
[填空题] Every profession or trade, every art, and every science has its technical vocabulary, the function of 【B1】 is partly to 【B2】 things or processes with no names in ordinary English, and partly to secure greater exactness in terminology. 【B3】 , they save time, for it is much more 【B4】 to name a process than describe it. Thousands of these technical terms are very 【B5】 included in every large dictionary, yet, as a whole, they are rather 【B6】 the outskirts of the English language than actually within its borders.
Different occupations, however, differ 【B7】 in their special vocabularies. It 【B8】 largely of native words, or of borrowed words that have 【B9】 themselves into the very fibre of our language. 【B10】 . though highly technical in many details, these vocabularies are more familiar in sound, and more generally 【B11】 . than most other technical terms. 【B12】 every vocation still possesses a large 【B13】 of technical terms that remain essentially foreign, even 【B14】 educated people
A. A．understood
B．considered
C．known
D．thought
