热门试题:
[单选题]诱导T细胞耐受较为有效的方法是
A.肌内注射大剂量TI抗原
B.皮下注射大剂量TI抗原
C.皮下注射大剂量TD抗原
D.静脉注射大剂量TI抗原
E.静脉注射大剂量TD抗原
[多项选择]当流体流经标准节流装置时,收缩截面处(),在阻挡件前后产生静压差。
A. 平均流速减小
B. 平均流速增加
C. 静压力减小
D. 静压力增大
[单选题]更换网络设备或安全设备的热插拔部件、内部板卡等配件时,应做好( )措施。
A.防静电
B.监护
C.应急
D.安全
[判断题]车辆与车辆及各动力单元之间通过半永久牵引杆连挂。
A.正确
B.错误
[单项选择]外科辨证,辨脓的色泽,如脓黄白质稠,色泽鲜明,为()
A. 气血充足
B. 气火有余,属顺证
C. 气血虽虚,未为败象
D. 血络损伤
E. 蓄毒日久,有损筋伤骨的可能
[多选题]安全生产处罚主体机关对违反安全生产有关法规规定的行为作相应的处罚,必须符合有关行政处罚程序。请根据所学的有关法律法规知识,冋答下列问题:
普通程序( )。
A.是对一般违法案件实施处罚的基本程序
B.是当场实施处罚的一种简便程序
C.相对严格
D.完整
E.适用广泛
[单项选择]小儿能抬头后能坐,之后能走是遵循了下列哪项发育顺序()。
A. 由上到下的顺序
B. 由近到远的顺序
C. 由粗到细的顺序
D. 由低级到高级的顺序
E. 由简单到复杂的顺序
[单选题]氯胺酮药理作用特点不包括
A.主要抑制丘脑和新皮层系统
B.引起意识模糊、痛觉消失
C.引起肌张力增加
D.对体表镇痛作用明显
E.对内脏镇痛作用明显
[单选题](99873)( )包裹由旅客自行装卸。(1.0分)
A.自押
B.鲜活
C.带运
D.鱼苗
[单选题]禁止作业人员利用起重机吊钩上升或下降。禁止用起重机械载运人员。()
A.正确
B.错误
C./
D./
E./
F./
[多项选择]下列属于外汇的有()
A. 外国货币
B. 外币支付凭证
C. 外币有价证券
D. 外国政府债券
E. 外国公司债券
[单选题]禁止在城市轨道交通车站站前广场、出入口周围 ( )米范围内堆放杂物、乱停车辆、揽客拉客以及从事其他妨碍乘客通行或救援疏散的活动。
A.A、5
B.B、10
C.C、15
D.D、30
[单项选择]下列说法不准确的是()
A. 建设单位、施工单位、监理单位不得修改建设工程勘察、设计文件
B. 确需修改建设工程勘察、设计文件的,应当由原建设工程勘察、设计单位修改
C. 经原建设工程勘察、设计单位同意,建设单位可以委托其他具有相应资质的建设工程勘察、设计单位修改
D. 修改单位对修改的勘察、设计文件承担相应责任
[判断题]台风是指中心附近最大平均风力10级及其以上,即风速超过32.6m/s的强热带气旋,它是热带气旋四个强度等级中的最高等级。( )
A.正确
B.错误
[单项选择]社会主义经济制度是建立在( )基础之上的。
A. 无产阶级政权的力量
B. 生产资料公有制
C. 多元所有制结构
D. 市场经济
[简答题]第五十三条:生产经营单位的从业人员有权了解其作业场所和工作岗位存在的危险因素,防范措施及事故应急措施,有权对本单位的( )提出建议。
[单选题]互感器现场校验工作不得少于()人。
A.2
B.3
C.4
D.5
[单项选择]在我国实施人类辅助生殖技术,下列违背卫生部制定的伦理原则的是()
A. 使用捐赠的精子
B. 使用捐赠的卵子
C. 实施亲属代孕
D. 实施卵胞浆内单精注射
E. 使用捐赠的胚胎
[单选题]对于可能侵入接触轨安全防护距离内的作业,由施工负责人通过谁?申请相关区域牵引停电;
A.现场指挥
B.行调
C.部门经理
D.部门安全工程师
[多项选择]细胞癌基因的产物有
A. 生长因子受体
B. 转录因子
C. p53蛋白
D. 酪氨酸蛋白激酶
[单选题]下面属于监理责任是( )。
A.熟悉作业范围、内容及流程,参加作业前的安全交底
B.掌握并落实安全措施
C.及时纠正作业人员存在的不安全行为
D.正确组织施工作业
[填空题]()是戏剧的重要特征。没有()戏剧性就无从谈起。英国的剧作家琼斯说:“一个人或几个人自觉不自觉地‘对抗’着敌对的人物、环境或命运,这就构成()。”
[单项选择]通常动物进行灌注固定时,先用下面哪种混合固定液进行灌注,取材后再浸泡在固定液中?()
A. 4%多聚甲醛-磷酸二钠/氢氧化钠液
B. 4%多聚甲醛0.1mol/L磷酸缓冲液(pH7.3)
C. 中性甲醛液
D. PFG液
E. 乙醚-乙醇液
[单项选择]
女,25岁,左乳痛7天,体温39.5~40C°,局部明显压痛、红肿。
诊断深部急性乳腺炎,最重要的依据是( )
A. 局部皮肤红
B. 体温升高,乳腺疼痛,压痛明显
C. 表皮温度较对侧明显升高
D. 初产妇
E. 有波动
[判断题]ERP是以客户关系的建立、发展和维护为主要目的。()
[单项选择]若该患者遗精日久,兼见形寒肢冷,阳痿早泄,夜尿多,尿色清,面色白,舌淡嫩有齿痕,苔白腻,脉沉细,可用
A. 金匮肾气丸
B. 无比山药丸
C. 右归丸
D. 济生肾气丸
E. 补中益气丸
[单项选择]下列有关血液流体动力学的描述,错误的是()
A. 血液是一种非牛顿液体
B. 红细胞比容在35%~45%时,血粘度变化不大
C. 红细胞比容在35%~45%时,对流体本身影响不大
D. 血管内径增加两倍,血流量增加16倍
E. 血管内径增加一倍,血流量增加16倍
[多项选择]室外管道沟槽开挖时,测量放线工作包括( )。
A. 测定管道的中心线
B. 测定管道高程
C. 挖槽边线的划出
D. 测定附属构筑物的位置
[单选题]触电急救,首先要使触电者迅速脱离电源,越快越好,因为电流作用时间越长,伤害越重。
A.正确
B.错误
[单项选择]莲子与芡实的共同功效是( )
A. 固表止汗
B. 益肾固精
C. 养心安神
D. 敛肺止咳
E. 固崩止带
[判断题]屋面防水层完成后要做蓄水或淋水试验。有女儿墙的平屋面做蓄水试验,蓄水24h无渗漏为合格;坡屋面可做淋水试验,一般淋水2h 无渗漏为合格。
A.正确
B.错误
[不定项选择题]共用题干
When Our Eyes Serve Our Stomach
Our senses aren't just delivering a strict view of what's going on in the world;they're af-fected by what's going on in our heads. A new study finds that hungry people see food-related words more clearly than people who'ye just eaten.
Psychologists have known for decades that what's going on,inside our head affects our senses. For example,poorer children think coins are larger than they are,and hungry people think pictures of food are brighter. Remi Radel of University of Nice Sophia-Antipolis,France,wanted to investi-gate how this happens. Does it happen right away as the brain receives signals from the eyes or a lit-tle later as the brain's high-level thinking processes get involved.
Radel recruited 42 students with a normal body mass index. On the day of his or her test,each student was told to arrive at the lab at noon after three or four hours of not eating. Then they were told there was a delay. Some were told to come back in 10 minutes;others were given an hour to get lunch first. So half the students were hungry when they did the ex-periment and the other half had just eaten.
For the experiment,the participant looked at a computer screen. One by one,80 words flashed on the screen for about 1/300th of a second each. They flashed at so small a size that
the students could only consciously perceive. A quarter of the words were food-related. After each word,each person was asked how bright the word was and asked to choose which of two words they'd seen一a food-related word like cake or a neutral word like boat. Each word ap-peared too briefly for the participant to really read it.
Hungry people saw the food-related words as brighter and were better at identifying food-related words. Because the word appeared too quickly for them to be reliably seen,this means that the difference is in perception,not in thinking processes,Radel says.
“This is something great to me. Humans can really perceive what they need or what they strive for. From the experiment,I know that our brain can really be at the disposal of our mo-tives and needs,”Radel says.
Radel's experiment discovered that hungry people______.
A.were more sensitive to food-related words than stomach-full people
B.were better at identifying neutral words
C.were always thinking of food-related words
D.saw every word more clearly than stomach-full people
[判断题]并联电路的总电压等于各支路电压之和。
A.正确
B.错误
[填空题]1940年,W.Earle建立了从()进行克隆培养的方法。
[单项选择]利用气体混合物各组分在液体中溶解度的差异而使气体中不同组分分离的操作称为()。
A. 蒸馏
B. 萃取
C. 吸收
D. 解吸
[填空题]数据库功能可以分为两部分:前端和后端。前端与后端之间通过【 】或应用程序来接口。