[填空题]Making sure that Bluetooth and its connected devices don’t interfere with one another can be difficult.

[单项选择]单相桥式整流中流过每个H极管的电流平均值是流过负载的电流平均值的（）。
A. 1/4
B. 1/2
C. 1倍
D. 2倍

[简答题]什么叫熵？

[多选题]57、消防救援人员（），按照有关规定执行。
A.办理和留存护照
B.往来港澳通行证
C.大陆居民往来台湾地区通行证
D.身份证

[单选题]柴油机启动时,当进入油压继电器的油压达( )kPa时,油压继电器触头吸合,DLS接通,联合调节器恢复正常工作。
A.70
B.90
C.120

[多项选择]涵洞的构造形式可分为( )。
A. 明涵
B. 管式涵
C. 盖板涵
D. 拱涵
E. 箱涵

[单选题]电流互感器( )与电压互感器二次侧互相连接,以免造成电流互感器近似开路,出现高电压的危险。
A.不能
B.必须
C.可以
D.应该

[单项选择]Questions 1 to 5 are based on an interview. At the end of the interview you will be given 10 seconds to answer each of the following five questions.
Now listen to the interview.

They made the film for the reason that ______.
A. only few people knew about electric cars
B. they wanted to sell more electric cars
C. many people didn’t like electric cars
D. people had misunderstanding on electric cars

[判断题]断路器应具备远方和就地操作方式
A.正确
B.错误

[单选题]宋先生,男,36岁,急诊入院后病人呼吸由浅慢逐渐加深加快,又由深快逐渐变为浅慢,暂停30秒后再度出现上述状态的呼吸,该病人的呼吸是( )
A.潮式呼吸
B.毕奥呼吸
C.间断呼吸
D.鼾声呼吸
E.呼吸困难

[单选题]灌注于骨节、脏腑、g瞄的是()
A.精
B.气
C.血
D.津
E.液

[单选题]高层建筑施工测量主要任务是将建筑物基础轴线准确地向高层引测，保证各层相应的轴线位于同一竖直面内，则控制与检测轴线向上投测的竖直偏差值应满足下列（　　）要求。
A.本层内不超过8mm，全楼的累积竖直偏差值不超25mm
B.本层内不超过5mm，全楼的累积竖直偏差值不超20mm
C.本层内不超过10mm，全楼的累积竖直偏差值不超30mm
D.本层内不超过6mm，全楼的累积竖直偏差值不超20mm

[单选题]采用ABC分析法实施存货管理时，A类存货的特点是（）。2018真题
A.品种多且应用广
B.品种少但占用资金多
C.品种多但占用资金少
D.数量少且占用资金少

[单选题]对于所有淘宝店铺而言，（）是店铺运营中最为重要的流量。
A.付费流量
B.自然流量
C.站外流量
D.淘宝客流量

[判断题]展放余线的人员不得站在线圈内或线弯的内角侧。（　　）
A.正确
B.错误

[判断题]运营中遇到突发情况需要进行列车调整时，应以“先通后复”为原则，在确保安全的基础上组织列车运行，并在最短时间内恢复列车按运行图行车。
A.正确
B.错误

[判断题] 在夜间或光线不足的地方进行高处作业，应设充足的照明。( ) (1.0分)
A.正确
B.错误

[简答题]慢性胰腺炎的MRI表现有哪些?

[判断题] ( )应用GB/T 2012时,结果与贮存时间无关。
A.正确
B.错误

[单选题]为提高装置小型化及冷却性能，牵引变流器采用强制循环( )冷方式。
A.水
B.油
C.油水

[单选题]某女患者，40岁，企图自杀，服用大量巴比妥严重中毒，送来医院时，呼吸已经停止。马上对病人进行洗胃，无效。在没有其他对抗措施的条件下，采用了在当时还没有推广的人工肾透析治疗法进行抢救，收到了很好的疗效。为了抢救病人，采用了治疗性试验。对此做法，下面说法错误的是
A.本案例医生的选择是正确的
B.即使是抢救成功，也不合乎道德规范
C.是符合医学道德的医学行为
D.动机是好的，但得失结果一时难以下结论
E.即使不幸造成死亡或伤残，也不能逆推动机不好

[单选题]下列可选性曲线描述正确的是（ ）。
A.β表示沉物曲线
B.Ө表示沉物曲线
C.λ表示沉物曲线
D.δ表示沉物曲线

[单项选择]不是评价藻酸盐印模材料性能要求的指标是（）
A. 良好的生物安全性
B. 流动性、弹性、可塑性好
C. 准确反映口腔组织
D. 承受模型材料的压力
E. 热膨胀系数与天然牙接近

[单选题] VC-12POH中的V5字节在功能上类似VC-4POH中的( ) (2分) 查看答案
A.H1、H2
B.C1、J1
C.G1、H4
D.G1、B3

[单项选择]在相同的自然条件下，形成不同农业生产结构的主要原因是（）
A. 人口
B. 社会经济条件
C. 消费习惯
D. 工业发展水平及农业科技水平

[单项选择]本期应计入管理费用的折旧为( )元。
A. 800000
B. 160000
C. 1025000
D. 900000

[单选题]HXD2（新八轴）电力机车采用( )网络控制系统
A.TCMS
B.TCN
C.TNN
D.CNS

[单选题]存款人开立银行结算账户可通过（）查询其信用信息。
A.个人信用查询系统
B.中国人民银行征信中心
C.个人信用信息基础数据库
D.人民币银行结算账户管理系统

[单选题]灰土色不可以传达出怎样的感觉
A.安稳
B.舒适
C.活泼
D.精致

[单选题]彩票：中奖：奖金
A.申请：通过：资格
B.贷款：审批：利息
C.考试：合格：录取
D.留学：护照：签证

[判断题]吊装断路器、隔离开关、电流互感器、电压互感器等大型设备时，应在设备底部捆绑控制绳，防止设备摇摆。（）
A.正确
B.错误

[单选题]京杭大运河是世界上里程最长、工程最大、最古老的运河之一。关于京杭大运河，下列说法错误的是( )。
A.永济渠、通济渠、邗沟、江南河四段形成于唐朝
B.贯通海河、黄河、淮河、长江、钱塘江五大水系
C.最早开凿于春秋时期，到现在已有2500多年的历史
D.北起北京(涿郡)，南到杭州(余杭)，经北京、天津两市及河北、山东、江苏、浙江四省

[单项选择]药品质量标准中的检查项内容不包括药品的
A. 安全性
B. 有效性
C. 均一性
D. 纯度
E. 代表性

[单选题]下列()不属于普通预拌砂浆范畴:
A.砌筑砂浆
B.抹灰砂浆 O
C.地面砂浆
D.自流平砂浆

[多选题]使用救生照明线必须注意：( )。
A.水中使用时，防止触电
B.不得超出极限负荷
C.使用后应冷却
D.边使用边冷却

[不定项选择题]共用题干 Craig Rogers was sitting on his surfboard, scanning（审视）the distance for his next wave, when his board suddenly stopped moving._________(46)"I could have touched its eye with my elbow（肘部）,"says Craig. The shark had surfaced so quietly that he hadn't heard a thing.
In his horror and confusion,he waved his arms and accidentally cut two of his fingers on the shark's teeth.He then slid off the opposite side of his surfboard into the water. Then,with Craig in the water and blood flowing from his fingers,the five-meter-long shark simply swam away,_______(47)
Although sharks are often categorized as killers that hunt and eat as many humans as they can, this is actually inaccurate.Sharks very rarely kill humans.A person has a greater chance of being struck by lightning or drowning（淹死）in a bath than of being killed by a shark. Only 74 people have been reported killed by great whites in the last century.But great white sharks can reach six meters in length and weigh 2,200 kilograms or more.With frightening jaws that can hold up to
3,000 teeth arranged in several rows,they could very easily kill and eat a helpless human in the water.________(48)Shark researchers are trying to comprehend the reasons that allow people to escape without being eaten.
The most common explanation is that great whites don't see well._________(49)There is reason to doubt this,however. Recent information shows that great whites can actually see very well. Also,when attacking seals,great whites shoot up to the surface and bite with great force.When approaching humans,however,_________(50)They soon discover that humans are not a high一fat meal."They spit us out because we're too bony,"says Aidan Martin,director of Reef Quest Center for Shark Research.
Shark researchers like Martin hypothesize that great whites are actually curious animals that like to investigate things.It's possible that they use their bite not only to kill and eat,but also to gather information.Although such an experience is unlucky for people like Craig Rogers,when sharks bite surfboards or other objects or people,they are likely just trying to learn what they are. _________（50）
A.disappearing into the water below.
B.Why is it,then,that most people survive attacks by great whites?
C.they most often move in slowly and bite less hard.
D.There is reason to doubt that great whites see well enough to attack humans.
E.It has been thought that they mistake people for the seals or sea lions which make up a large part of their diet.
F.He looked down and was terrified to see a great white shark biting the front of his board.

[单选题]根据GB/T18488.1-2015驱动电机定子绕组对机壳的冷态绝缘电阻值应大于（）
A.10MΩ
B.20MΩ
C.30MΩ
D.40MΩ

[单项选择]类风湿关节炎最常累及的关节是
A. 髋关节
B. 肘关节
C. 膝关节
D. 肩关节
E. 四肢小关节