热门试题:
[填空题]DNA中的胸腺嘧啶碱与RNA中的尿 ( )结合性质是相似的。
[简答题]The proportion of works cut for the cinema in Britain dropped from 40 percent when I joined the BBFC in 1975 to less than 4 percent when I left. But I don’t’ think that 20 years from now it will be possible to regulate any medium as closely as I regulated film.
The Internet is, of course, the greatest problem for this century. (46) The world will have to find a means, through some sort of international treaty or United Nations initiative, to control the material that’s now going totally unregulated into people’s homes. That said, it will only take one little country like Paraguay to refuse to sign a treaty for transmission to be unstoppable. Parental control is never going to be sufficient.
(47) I’m still very worried about the impact of violent video games, even though researchers say their impact is moderated by the fact that players don’t so much experience the game as enjoy the technical maneuvers that enable you to win. But in respect of violence in mainst
[单选题]通常,混合单元将PACK1的空调气输送至__________,PACK2的空调气输送至_________。
A.驾驶舱和前客舱、后客舱
B.前客舱、后客舱
C.驾驶舱、前客舱和后客舱
D.客舱、货仓
[判断题]动火作业间断或终结后,应清理现场,方可离开。
A.正确
B.错误
[单选题]为了增强钢丝绳的挤压能力,应在钢丝绳中心设置一( )。
A.石棉芯
B.钢芯
C.铅芯
D.纯棉芯
[判断题]调车相撞,为一般B类事故。( )
A.正确
B.错误
[判断题]建筑起重机械经验收合格后方可投入使用.未经验收或者验收不合格的不得使用.( )
A.正确
B.错误
[多选题]美国心理学家吉尔福特认为人的智力结构可以从三个方面来研究:( )
A.内容
B.操作
C.遗传
D.成果
[多选题]在发生人身触电事故时,可以不经许可,立即断开有关设备的电源,但事后应立即报告( )。
A.工作许可人;
B.工作负责人;
C.值班调控人员;
D.运维人员
[多项选择]系统科学方法论()。
A. 皆以系统为主要的研究对象
B. 是一组帮助人们认识世界和解释世界的方法论体系
C. 是一组现代科学方法论体系
D. 经历了两个阶段
E. 分为老三论和新三论
[单项选择]A house is the most expensive thing most people will ever buy. Very few people have enough money of their own to buy a home, so they have to borrow money from a bank. Borrowing money from a bank to buy a house is called "take a mortgage". The bank usually lends money or gives a mortgage for twenty-five years. Houses are so expensive that many people nowadays have to borrow as much as $ 50000. In other words, they will have a $ 50000 mortgage.
How can you get a mortgage When you find a house you like, you go to a bank. The bank will research your financial history and decide if they think you are a good risk. They will want to know what kind of job you have, what kind of salary you make, and how long you have had the job. They will also want to know how much money you have. In addition, the bank will require a down payment. Depending on which state you live in, the bank may require as much as 30% of the price of the house as a down payment. The bank will then lend you the rest of t
A. How much money the borrower owns.
B. What salary the borrower makes.
C. What kind of job the borrower has.
D. What kind of house the borrower lives in.
[单项选择]癔症分离性障碍,在意识清晰度下降、意识范围缩窄时出现违法犯罪行为,应评为( )
A. 无责任能力
B. 完全责任能力
C. 部分责任能力
D. 完全行为能力
E. 无行为能力
[判断题]绝缘手套使用前应进行外观检查,如有破口情况,禁止使用。()
A.正确
B.错误
[单选题]调节分流不分流进样口的分流比一般通过调节( )来完成。
A.分流不分流进样口进口载气压力
B.柱子流量
C.隔垫吹扫气路流量
D.分流气出口阀门开度
[单选题]国庆节前夕,某化工厂厂长组织厂安全生产委员会对全厂范围内进行了一次安全大检查,这种检查的方式属于( )。
A.季节性安全检查
B.节假日前后安全检查
C.定期安全检查
D.综合性安全检查
[单选题]以电力晶体管组成的斩波器适于( )容量的场合。
A.特大
B.大
C.中
D.小
[单选题]火场中玻璃大约在()℃时就开始炸裂掉落到地面。
A.450
B.500
C.600
D.700
[多选题] 以下( )禁止溜放。
A. 除雪车
B. 动车组
C. 机械冷藏车
D. 凹型车
[单项选择]女性,21岁,拟在局部麻醉下行脓性指头炎切开引流术,术前饮食管理要求是
A. 禁食4小时
B. 禁食6小时
C. 禁食8小时
D. 禁食12小时
E. 不必禁食
[单项选择]检查发现该患儿的碱性磷酸酶增高。此时应给予患儿的治疗为
A. 补充钙剂
B. 抗生素治疗
C. 镇静药治疗
D. 维生素D
E. 甲状腺素治疗
[单选题] "515、润滑油的粘度随温度升高而()。
A.不变
B.增加
C.降低"
[单选题]( )的思想以其科学而高尚的品质,代表了人类社会迄今为止最先进的人生追求。
A.“人生在世、吃喝玩乐”
B.“生当作人杰、死亦为鬼雄”
C.“服务人民、奉献社会”
D.追逐名利的人生观
[判断题]带传动采用张紧轮的目的是改变带的运动方向。( )
A.正确
B.错误
[单选题]只有由多种( )相互搭配的膳食,营养素种类才齐全,数量才充足,营养价值才高。
A.氨基酸
B.脂肪酸
C.维生素
D.食物
[单选题]《工业企业煤气安全规程》规定,作业环境 CO 最高允许浓度为()PPM
A.100
B.24
C.28
[单项选择]男性,20岁,乏力、食欲减退1个月,尿少、水肿及高血压1周,实验室检查发现贫血,血尿、蛋白尿,补体C3正常,血肌酐和尿素氮均升高,B超示双肾增大,临床诊断为“急性肾衰竭”,如果血清抗肾小球基底膜抗体阳性,下列疾病中最可能的是()。
A. 狼疮肾炎
B. 过敏性紫癜
C. 急进性肾炎Ⅰ型
D. 急性链球菌感染后肾小球肾炎
E. IgA肾病
[单项选择]Not once in these years ( ) the prices of these products.
A. we changed
B. have we changed
C. did we change
D. we have changed
[单选题]生产经营单位应当具备《安全生产法》和有关法律.行政法规和国家标准或者行业标准规定的( )。
A.生产条件
B.安全生产条件
C.工作条件
[判断题]气缸盖螺栓是紧固气缸盖和气缸体的连接件,一般用优质合金钢制造。( )
A.正确
B.错误
[判断题]因技改、大修等原因,造成车站线路坡道数据资料不明,确需停留保留列车时,除按《站细》规定采取防溜措施外,并增加拧紧列车两端第2、3位人力制动机。
A.正确
B.错误