热门试题:
[单项选择]关于遗传关联分析，叙述错误的是（）
A. 关联分析基于病例与正常对照组遗传标记的等位基因频率不同而设计
B. 病例对照研究为遗传关联分析的常见类型
C. 病例对照研究中最主要的混杂因素来自于人群分层
D. 传递不平衡检验是以连锁为基础、以患病同胞为对照的关联性分析
E. 传递不平衡检验不适用于全基因组关联研究
[单选题]泵壳的作用之一是,由于从工作轮中甩出的水( ),因此泵壳就起了收集水并使其平稳地流出的作用。 (易)
A.流动得不平稳
B.流动速度太快
C.水流压力太大
D.水头损失较大
[单项选择]We drink tea every day. But more than three hundred years ago, most of the people in Europe did not know (41) about tea, because it was (42) in Asia. There is a (43) about an English sailor. (44) he went to India and China. When he came home, he brought some (45) as a present to his mother. She told her friends about the present and (46) them to a tea party. When her friends came to the tea party, the old woman brought some tea (47) and asked them to eat. Of course, nobody liked the tea leaves.
Just (48) the sailor came in. He looked at the tea leaves on the table and asked his mother, "What have you done (49) the tea"
"I boiled it as you said." "And what did you do with the water" the sailor asked.
"I (50) it away, of course," answered the woman.
"Now you may throw away the leaves, too." said her son.
A. water B. leaves C. cakes
[单选题]安全技术交底应依据国家有关法律法规和有关标准。工程设计文件、施工组织设计和安全技术规划、专项施工方案和安全技术措施、安全技术管理文件等的要求进行。
A.正确
B.错误
[单项选择]
Mr. Andrews had been out of work for more than a year. This (36) father of four children had deeply known his (37) of family heartaches(伤心).
One day, he was (38) for a train in New York City. The train pulled into the station and stopped. He was getting ready to get on the train when something (39) happened. An old blind man, who had (40) the space between two carriages (车厢)for a door while (41) his way with a stick, wasn’ t able to be walking in a proper way, and suddenly fell (42) the train. Seeing this, Mr. Andrews quickly jumped down to the tracks and (43) the blind man to safety. He impressed(使铭记) all the people on the (44) with his courage. The news rapidly (45) all over the country. Messages began to pour in. Some people (46) sent money and food to him.
Mr. Andrews had been at the station (47) he was returning from a job talk. He probably would have been hired, but pub
A. truth
B. share
C. danger
D. delay
[判断题]当居住舱室着火,烟雾很大时应该开亮电灯寻找火源。( )
A.正确
B.错误
[单项选择]当客人突发奇想，临时决定结束旅游活动，要求中途退团时，对于没有享受到的综合服务费正确的处理方法是：( )
A. 部分退还
B. 全部退还
C. 不予退还
D. 按旅游协议书的规定或根据旅行社之间协商的办法处理
[单项选择]Science is still ______ of the causes of many kinds of cancer.
A. ignorant
B. unconscious
C. conscious
D. informed
[单选题]病人自觉大脑突然涌现出大量不自主的、杂乱无章的、不属于自己思想的陌生内容，此症状是
A.强制性思维
B.思维散漫
C.强迫性思维
D.思维奔逸
E.被洞悉感
[单项选择]红参用于抢救虚脱常用汤剂的剂量是
A. 1～3g
B. 3～6g
C. 6～9g
D. 9～15g
E. 15～306g
[判断题] ( )催化重整装置分馏系统水运后，进行油联运第一次升温过程中，应注意防止水分突然蒸发冲坏塔板。
A.正确
B.错误
[单项选择]It is irenic that a man with such a decent dress and graceful manner be a gangster.
A. can
B. may
C. should
D. would
[填空题] ( )对于同一族烃类，在同一温度下，相对分子质量较大的烃类的蒸汽压较大。
[判断题]《入境货物调离通知单》是进口法检货物已向检验检疫机构报检并准予销售、使用的有效凭证。
[判断题]校验现场应装设遮栏或围栏，遮栏或围栏与校验设备高压部分应有足够的安全距离，向外悬挂“止步，高压危险！”的标示牌，并派人看守。被校设备两端不在同一地点时，另一端应确保周围无人后，拉上围栏即可。
A.正确
B.错误
[判断题]<311>铁、铝、铅等材料对Y射线的屏蔽作用最强的是铝。
A.正确
B.错误
[单项选择]
There is nothing like the suggestion of a cancer risk to scare a parent, especially one of the over-educated, eco-conscious type. So you can imagine the reaction when a recent USA Today investigation of air quality around the nation’s schools singled out those in the smugly green village of Berkeley, Calif., as being among the worst in the country. The city’s public high school, as well as a number of daycare centers, preschools, elementary and middle schools, fell in the lowest 10 %. Industrial pollution in our town had supposedly turned students into living science experiments breathing is a laboratory’s worth of heavy metals like manganese, chromium and nickel each day. This is a city that requires school cafeterias to serve organic meals. Great, I thought, organic lunch, toxic campus.
Since December, when the report came out, the mayor, neighborhood activists and various parent-teacher associations have engaged in a fierce battle over its validity: o
A. A heated debate.
B. Popular support.
C. Widespread panic.
D. Strong criticism.
[判断题]结构性存款质押个人贷款统一采用到期一次性还本付息的还款，质押的个人结构性存款产品可为“保本型”和“非保本型”。
A.正确
B.错误
[多项选择]以下哪些是增殖型肠结核的X线表现（）
A. 如有粘连时可见肠管排列紊乱
B. 激惹征象较明显
C. 黏膜紊乱增生，呈小息肉样改变
D. 病变常见于回肠末段
E. 肠腔变形、缩小
[单选题] 在地铁站内发现可疑物时，处置民警实施“绳钩组处置法”时操作错误的是（ ）
A. 设置好转移路线，由安全点顺序放绳至可疑物
B. 退到安全距离后开始小心缓慢拉动绳子，将可疑物接至安全地点
C. 将绳钩挂在可疑物时，先挂钩后放绳
D. 使用绳钩组处置时，应持防护盾牌
[判断题]JZ-7型制动机由风源部分、制动机及其辅助装置两大部分组成。
A.正确
B.错误
[单选题]电池截止电压不能低于额定值的多少？
A.60%
B.70%
C.80%
D.90%
[多项选择]公共出版物能够提供大量有用的信息，包括( )。
A. 行业年鉴
B. 统计报告
C. 调查报告
D. 气象资料
E. 问卷调查
[单选题]在冲击闪络之后,建立起( )才会引起线路跳闸。
A.工频电弧
B.冲击电弧
C.电晕电弧
D.雷击电弧
[单项选择]一般，110/10 kV变电所，全户外式占地面积( )m2，户内式占地面积( )m2。
A. 5500～3500：1500～800
B. 4500～3000：1800～1000
C. 5500～3000；2500～1000
D. 3500～2000：1500～1000
[多选题]《建设工程安全生产管理条例》规定，施工单位在采用（）时，应当对作业人员进行相应的安全生产教育培训。
A.新技术
B.新工艺
C.新设备
D.新材料
E.略
F.略
[单选题][T]BC014412钻柱稳定器中()稳定器包括长直棱稳定器和短直棱稳定器。
A.柔性
B.刚性
C.弹性
D.弹簧
[判断题]原料中的烷烃、环烷烃及芳烃能使汽油辛烷值增加,但原料中的粗汽油也会使产品辛
烷值下降。
A.正确
B.错误
[多项选择]合同履行中，承担违约责任的方式包括( )等。
A. 继续履行
B. 采取补救措施
C. 赔偿损失
D. 返还财产
E. 追缴财产，收归国有
[单项选择]根据《合同法》的规定，债务人将债务全部或者部分转移给第三人的，正确的做法是______
A. 口头通知债权人即可
B. 书面通知债权人即可
C. 应当经债权人同意
D. 无须通知债权人
[判断题]托运人自装货车，发站接收时发现货物装载、加固危及运输安全时，应由托运人进行整理、换装。
A.正确
B.错误
[判断题]作业人员应在接地线的保护范围内作业。禁止在无接地线或接地线装设不齐全的情况下进行高压检修作业。（ ）
A.正确
B.错误
[单选题]《安规》(热力和机械部分)规定，在金属容器内和狭窄场所工作时，必须使用24V以下的电气工具，或选用手持式电动工具（ ）。
A.1类
B.2类
C.3类
D.4类
[单选题]侵蚀性葡萄胎与绒毛膜癌均可发生在( )
A.葡萄胎排空后
B.自然流产后
C.输卵管妊娠后
D.足月分娩后
E.人工流产后
[判断题]柴油机每运转一个月后，需要检查弹性连接器是否损坏，必要时更换有关零件。
A.正确
B.错误
[单选题]判断对一事物的认识是否完成的标志是()(1分)( )
A. 占有的感性材料是否十分丰富而又真实
B. 感性认识是否已经上升到理性认识
C. 对该事物的认识是否已经过多次反复
D. 对该事物的理性认识是否已运用于实践,并取得预期效果
