热门试题:
[单选题]1.140.第140题
丢包率与数据包长度以及包发送频率相关,通常用作衡量路由器在超负荷工作时路由器的性能。
A.正确
B.错误
[单选题]智慧能源控制平台的数据交互中心构建中,数据交换是基于“()”进行建模,为多源的大数据标准化交互提供支持,统一各监控平台的数据接入。
A.A、数据;
B.设备容器;
C.能源;
D.控制。
[单项选择]下列哪项不是补骨脂的适应证()
A. 肾虚阳痿、腰膝冷痛
B. 肾虚遗精、遗尿、尿频
C. 虚寒性出血证
D. 肾不纳气虚寒喘咳
E. 脾肾阳虚泄泻
[判断题]当车梯工作台面上有人时,推动车梯的速度不得超过10km/h,并不得发生冲击和急剧起、停。
A.正确
B.错误
[单选题]非法侵入国家事务、国防建设、尖端科学技术领域的计算机信息系统的行为,构成()。(1分)
A.非法侵入计算机信息系统罪
B.非法侵入计算机信息系统的违反治安管理行为
C.危害公共安全罪
D.窃取国家秘密罪
[单项选择]关于胃液分泌的描述,下列哪项错误( )
A. 壁细胞分泌盐酸
B. 主细胞分泌胃蛋白酶原
C. 粘液颈细胞分泌粘液
D. 幽门腺细胞分泌粘液
E. 主细胞分泌内因子
[多项选择]施工起重机械和整体提升脚手架、模板等自升式架设设施安装完毕后应()。
A. 安装单位应该自检
B. 安装单位应出具自检合格证明
C. 安装单位应向施工单位进行安全说明
D. 安装单位应向建设单位进行安全说明
E. 安装单位应该办理验收手续并签字
[填空题]隔离开关主要有手动隔离开关、 和电动隔离开关。
[单选题]为慢性细菌性痢疾患者灌肠时,不妥的是 ( )
A. . 于夜间睡前灌入
B. . 肛管插入肛门15~20cm
C. . 协助患者取右侧卧位
D. . 嘱患者尽量保留药液1h以上
[单项选择]苓桂术甘汤治疗心悸的证候是()。
A. 阴虚火旺证
B. 瘀阻心脉证
C. 水饮凌心证
D. 心阳不足证
E. 心虚胆怯证
[单选题]当代资本主义的最重要的新特征是
A.经济全球化趋势加速发展
B.生产和资本进一步国际化
C.跨国公司迅速崛起
D.国家垄断资本主义获得广泛发展
[单选题]中性焰可焊接的材料是( )。
A.低碳钢、低合金钢、灰铸铁、球磨铸铁、铝及铝合金
B.镍、高碳钢、高速钢
C.黄铜、青铜
[单选题] I型屏蔽服的熔断电流应大于()A。
A. 40
B. 5
C. 30
D. 15
[单项选择]严重型α海洋性贫血出现的异常血红蛋白是()
A. HbA
B. HbA2
C. HbF
D. HbS
E. Hb Bart
[单选题]各站垂直电梯维护、维修工作应在每日( )进行。
A.A、运营结束后
B. B、和车站申请后随时
C. C、运营时间
D. D、非高峰期
[单项选择]与照片对比度无关的因素是()
A. 被照体的结构
B. 管电压的高低
C. 胶片的感光度
D. 增感屏的使用与否
E. 散射线的多少
[判断题]中性点绝缘系统和小电流接地系统单相接地故障应及时处理,允许故障运行时间一般不超过2h。 ( )
A.正确
B.错误
[判断题]转向架组装后各零部件技术状态须良好组装尺寸正确转动摆动部分灵活,油润良好。( )
A.正确
B.错误
[不定项选择题]共用题干
Cell Phone Lets Your Secret Out
Your cell phone holds secrets about you.Besides the names and________(51)that you'ye pro-
grammed into it,traces of your DNA linger on the device,according to a new study.
DNA is genetic material that_________(52)in every cell.Like your fingerprint, your DNA is unique
to you一_______(53)you have an identical twin.Scientists today routinely analyze DNA in blood,
saliva,or hair left__________(54)at the scene of a crime.The results often help detectives identify
________(55)and their victims.Your cell phone can reveal more about you ________(56)you might
think.
Meghan J.McFadden,a scientist at McMaster University in Hamilton,Ontario,heard about a crime in
which the suspect bled onto a cell phone and later dropped the_________(57).This made her wonder
whether traces of DNA lingered on cell phones even when no blood was involved._________(58)she and
colleague Margaret Wallace of the City University of New York analyzed the flip一open phones of 10 volun-
teers.They used swabs to collect__________( 59)traces of the users from two parts of the phone:the
outside,where the user holds it,and the_________(60),which is placed at the user's ear.
The scientists scrubbed the phones using a solution made mostly________(61)alcohol.The aim of
washing was to remove all detectable traces of DN
A.The owners got their phones__________(62)for
another week.Then the researchers collected the phones and repeated the swabbing of each phone once
more。
The scientists discovered DNA that
_________ (63)to the phone's speaker on each of the phones.
Better samples were collected from the outside of each phone,but those swabs also picked up DNA that be-
longed to other people who had apparently also handled the phone.________(64),DNA showed up even
in swabs that were taken immediately after the phones were scrubbed.That suggests that washing won't remove
all traces of evidence from a criminal's device.So cell phones can now be added to the.__________(65)of clues
that can clinch a crime-scene investigation.
_________(52)
A.appeals
B.appoints
C.appears
D.applies
[多项选择]乌头与下列药物配伍相反的是( )
A. 白芨
B. 半夏
C. 瓜蒌
D. 白蔹
E. 桑枝
[单项选择]慢性白血病特点是()。
A. 骨髓内原始细胞<5%
B. 骨髓内原始细胞>20%
C. 骨髓内原始细胞>40%
D. 骨髓内原始细胞>30%
E. 骨髓内原始细胞<2%
[单项选择]男性,43岁,右腰部钝痛2年,B超检查发现右肾盂结石直径2cm,右肾轻度积水,左肾未见异常。KUB平片上,右肾结石要注意与何病相鉴别。()
A. 胆囊结石
B. 胃溃疡
C. 阑尾炎
D. 右肾双肾盂双输尿管畸形
E. 马蹄肾
[填空题][填空]消化性溃疡的并发症有消化道出血,穿孔,( )__,( )__。
[单选题]线路保养质量评定应以千米为单位,100~85分为优良,85(不含)~60分为合格,( )分以下为失格。(应知应会-《普速铁路线路修理规则》-第7.0.2条)
A.60
B.50
C.40
D.30
[填空题]国家倡导诚实守信、健康文明的网络行为,推动传播社会主义核心价值观,采取措施提高全社会的 () 和水平,形成全社会共同参与促进网络安全的良好环境。
[单项选择]
Cooperation is the only safeguard we have against the development of neurotic tendencies. It is there- fore very important that children should be trained and encouraged in cooperation, and should be allowed to find their own way amongst children of their own age, in common tasks and shared games. Any barrier to cooperation will have serious consequences. The spoilt child, for example, who has learned to be interested only in himself, will take this lack of interest in others to school with him. His lessons will interest him only in so far as he thinks he gains his teachers’ favor. He will listen only to what he considers advantageous to himself. As approaches adulthood, the result of his lack of social feeling will become more and more evident. When he first misunderstood the meaning of life, he ceased training himself for responsibility and independence. By now he is painfully ill-equipped for life’s tests and difficulties.
We cannot blame the adult for the
A. learning by himself.
B. cooperating with others.
C. thinking independently.
D. understanding the meaning of life.
[单选题]工作许可时,工作票一份由工作负责人收执,其余留存于()处。
A.工作票签发人或专责监护人
B.工作票签发人或工作许可人
C.工作许可人或用户负责人
D.工作许可人或专责监护人
E./
F./
[单选题]关于《火灾事故调查规定》中的“以上”、“以下”解释正确的是()。
A.、“以上”包含本数、本级,“以下”不包含本数
B.、“以上”不包含本数、本级,“以下”包含本数
C.、“以上”、“以下”均不包含本数或本级
D.、“以上”、“以下”均包含本数或本级
[单选题][T]A-A-001 4 2 3
在一台换热器中,传热速率与热负荷的关系为( )。
A.传热速率=热负荷
B.传热速率>热负荷
C.传热速率<热负荷
D.无关
[多选题] 青霉素过敏性休克的临床表现有
A.呼吸道阻塞症状
B.循环衰竭症状
C.中枢神经系统症状
D.荨麻疹
E.腹痛与腹泻
[判断题] ()经常行驶在拱度较大的路面上跟轮胎异常磨损没有关系。
A.正确
B.错误
[单选题]根据病人病情,应首先采取的紧急措施是( )
A.立即停药平卧,皮下注射 0.1%盐酸肾上腺素
B.立即皮下注射异丙肾上腺素
C.立即静脉注射地塞米松
D.立即注射呼吸兴奋剂
[单选题]更换变频器时,变频器自行放电的时间标准范围为()。
A.>2min
B.>3min
C.>10min
D.>5min
[多选题]党员具有下列情形之一的,按照规定程序给予除名处置( )
A.信仰宗教,经党组织帮助教育仍没有转变的,劝其退党,劝而不退的予以除名
B.因思想蜕化提出退党,经教育后仍然坚持退党的,予以除名
C.为了达到个人目的以退党相要挟,经教育不改的,劝其退党,劝而不退的予以除名
[多项选择]室上性心动过速的心电图特征是()
A. 心率150~250次/分
B. QRS波形态及时限正常
C. P波为逆行性
D. 起始突然,通常由一个期前收缩触发
E. ST-T改变
[单选题]生产商品的劳动的二重性决定于( )。
A.商品二因素
B.简单劳动和复杂劳动
C.私人劳动和社会劳动的矛盾
D.具体劳动和抽象劳动
[单项选择]脑脊液来自中鼻道者,瘘孔在()。
A. 筛骨筛板
B. 额窦
C. 蝶窦
D. 鼓室或乳突
E. 颅中窝