题目详情
题目详情:

[单项选择]女,16岁,14岁月经初潮,周期24~30天,经期5天。近半年月经来时腹痛,伴恶心、呕吐,第1天为重。检查未发现器质性病变。原发性痛经的病因可能是()
A. 前列环素可使子宫平滑肌收缩而引起痛经
B. 经血中PG含量较正常高,尤其是PCE2上升使子宫平滑肌收缩
C. 经血中PGF2a升高,致使子宫收缩而引起痛经
D. 痛经患者常伴有宫颈管长而狭窄
E. 分泌型子宫内膜PG含量明显低于增生期子宫内膜

热门试题:

[多选题]下列属于收费站便民服务项目中的基本服务项目的是()。
A.车辆加水
B.内服药品
C.饮用开水
D.维修工具
[单选题]麓山公司 2019 年末“递延所得税资产”科目的借方余 额为 69 万元(均为固定资产后续计量对所得税的影响)。麓山公 司预计会持续盈利,各年能够获得足够的应纳税所得额,适用的
所得税税率为 25%。2020 年末固定资产的账面价值为 6200 万元, 计税基础为 6800 万元,2020 年因产品质量保证确认预计负债 120 万元,税法规定,产品质量保证支出在实际发生时允许税前扣除。 不考虑其他因素,麓山公司 2020 年应确认的递延所得税收益为
( )万元。
A.111
B.180
C.150
D.30
[单选题]老年人对地名人名或电话号码很难牢固记忆,这主要是因为( )
A.老年人的短时记忆能力减退
B.老年人的再认能力减退
C.老年人的速度记忆能力减退
D.老年人的机械识记能力减退
E.以上选择项全部正确
[单选题]7~8 成热的油温一般为( )℃的油温。
A.100~120
B.120~130
C.130~140
D.170~230
[单选题] 起重破拆时,起重气垫严禁重叠使用。( )
A.正确
B.错误
[单项选择]

Tattoos didn’t spring up with the dawn of biker gangs and rock ’n’ roll bands. They’ve been around for a long time and had many different meanings over the course of history.
For years, scientists believed that Egyptians and Nubians were the first people to tattoo their bodies. Then, in 1991, a mummy was discovered, dating back to the Bronze Age of about 3300 B.C. "The Iceman," as the specimen was dubbed, had several markings on his body, including a cross on the inside of his knee and lines on his ankle and back. It is believed these tattoos were made in a curative effort.
Being so advanced, the Egyptians reportedly spread the practice of tattooing throughout the world. The pyramid-building third and fourth dynasties of Egypt developed international nations with Crete, Greece, Persia and Arabia. The art tattooing stretched out all the way to Southeast Asia by 2000 B. C. Around the same time, the Japanese became interested in the
A. to treat the disease
B. to challenge social mores
C. to record the footprints of one’s life
D. to adorn oneself

[填空题]

When I was in high school, most of my friend had bicycles. 1. ()I hoped I could also have it. One day I saw a second-hand 2. ()bicycle, that was only one hundred yuan. I asked my 3. ()father the money. 4. ()But he said he could only give me half of the money. 5. ()He should find the other half myself. So I went 6. ()to sell newspapers after school. My father was pleased if 7. ()I showed him the money a month after. He 8. ()gives me the other fifty. You can imagine how 9. ()much happy I was when I rode to school on my own bicycle. 10.()
 

第(2)空应()
[多选题]坠落时的自救避险方法有哪些。
A.首先尝试性地轻轻活动身体各个部位,检查自己是否还 能活动,是否受伤或伤在何处,伤得如何
B.利用通信工具、灯光或大声呼喊向外部救援人员发出求救信号,指示救援方位
C.仔细查看周围环境,主动寻找是否有能够脱离险境的自救途径
D.如果有出血较多的情况,应立即设法包扎止血
E.原地不动,等待救援人员到达现场进行施救
[单选题]承受反复荷载的上拔、下压类基础,如( )。
A.带拉线的直线型
B.耐张型杆塔基础
C.转角杆塔内角侧基础
D.铁塔的分开式基础
[单项选择]软件需求分析阶段的工作,可以分为四个方面:需求获取,需求分析,编写需求规格说明书,以及( )。
A. 阶段性报告
B. 需求评审
C. 总结
D. 都不正确
[判断题]QC小组是公司管理层围绕企业经营战略、方针目标,结合日常工作而组织起来的小组。
A.正确
B.错误
[单项选择]关于大疱性红斑狼疮,描述错误的是()。
A. 为急性皮肤红斑狼疮的一种新亚型
B. 皮损好发于曝光部位
C. 组织病理是表皮下水疱
D. 免疫电镜是免疫球蛋白沉积在透明板
E. 患者对氨苯砜治疗非常敏感
[单项选择]通过较为简单的施工过程就能生产出来且可以用适当的计量单位进行计量、描述的建筑或设备安装工程各种基本构造要素被称为()
A. 分部工程
B. 分项工程
C. 单项工程
D. 单位工程
[判断题]()泡夫面糊一般要经过烫面和搅糊两个过程完成。
A.正确
B.错误
[简答题] 容性电路的无功功率是正值。
[多选题]根据《金融机构客户身份识别和客户身份资料及交易记录保存管理办法》,金融机构除核对有效身份证件或者其他身份证明文件,可以采取以下措施,识别或者重新识别客户身份
A.要求客户补充其他身份资料或者身份证明文件
B.回访客户
C.实地查访
D.向公安、工商行政管理等部门核实
[判断题][T]BCA001 4 3 2
反应器温度的异常波动不会引起负荷变化。( )
A.正确
B.错误
[简答题]什么叫断路?短路?短路有何危害?《机车乘务员通用知识》P7T33
[判断题]使用收款机收款时,若想实现总折扣,按F5键调出编辑折扣窗口,写入折扣率,则全部商品都打折。
[单选题]如滑梯不能自动充气:(DSC-52-10-80)
A.它就不能充气
B.可以人工充气
C.可以作为手持救生滑梯
D.以上B+C
[单选题]烧伤最常见的死亡原因是
A.休克
B.ARDS
C.肾功能衰竭
D.感染
E.心功能衰竭
[单选题]06BG001535.带零线计量的单相电子式电能表,其火线零线分别( ),分别( );当功率相差10%,自动切换。
A.采样、计量
B.接线、计费
C.采集、计数
D.读数、收费
[判断题]起重气垫具备抗静电、抗裂、耐磨、抗油和抗老化等性能。( )
A.正确
B.错误
[多项选择]费用优化的步骤包括( )。
A. 按工作的正常持续时间确定计算工期和关键线路
B. 确定工作自由时差和总时差
C. 计算各项工作的直接费用率
D. 确定建造总费用
E. 确定间接费用率
[单项选择] On 10 September 2001, Charles Ingram, an officer in the British army, became a millionaire — but only for a few hours. That night, he appeared on the UK’’s "Who wants to be a Millionaire" quiz show. Contestants on this show must answer 15 questions correctly, getting larger sums of money each time. If they answer all the questions, they walk away with 1 million. Charles Ingram won his million. But then the program makers decided he had cheated. Contestants have to choose one correct answer from four given to every question. Playing back the tape of the show, they heard loud coughs coming from the audience whenever the correct answer was mentioned. Charles Ingram would then choose that answer. The coughs came from another contestant, Tecwen Whittock, who was a friend of Charles Ingram’’s wife, Diana. The three were soon arrested and on April 7 this year, they were all found guilty in court by trying to cheat the programme makers of their money. However, Charles Ingram stil
A. they haven’’t done anything against moral values
B. the court found they were not guilty of cheating
C. the press argued that Ingram may have tried to commit fraud, but the producer of the show should be more responsible for the misdeeds
D. they haven’’t profited from the whole business
[单项选择]有毒物质对人体造成伤害的途径主要有三种,以下哪种不是?()。
A.  吸入
B.  吞咽
C.  注射
D.  与皮肤接触
[单选题]商品的整体概念不包含哪些?
A.商品的实质层
B.商品实体层
C.商品基础层
D.商品延伸层
[判断题]( )线路维修单项作业工时定额规定,一般情况下,在混凝土枕线路上一个人拧紧100个扣件螺栓(扭矩达到要求),需要10min。
A.正确
B.错误
[单选题]网卡(包括集成网卡)是计算机联网的必要设备之一,以下关于网卡的叙述中,错误的是( )。
A..局域网中的每台计算机中都必须有网卡
B..一台计算机中只能有一张网卡
C..不同类型的局域网其网卡不同,不能交换使用
D..网卡借助于网线(或无限电波)与网络连接
[填空题]M和T座两供电臂负荷电流大小()、功率因数也相等的条件下,斯科特结线牵引变压器原边三相电流大小相等、相位互差120°,即原边三相电流()。
[单项选择]样本含量足够大,总体阳性率与阴性率均不接近于0和1,总体率95%可信区间的估计公式为
A. P±2.58Sp
B. P±1.96Sp
C. P±1.9Sx
D. P±2.58Sx
E. P±1.96Sx
[判断题]埋弧焊时既可以用药芯焊丝,也可以用实心焊丝。
A.正确
B.错误
[单项选择]下列有关腹泻的叙述,不正确的是()
A. 变态反应可引起腹泻
B. 感染性腹泻最常见
C. 病程超过3~6周者属于慢性腹泻
D. 分泌性腹泻是由于肠黏膜分泌亢进所致
E. 口服甘露醇所致腹泻属渗出性腹泻
[单选题]烟花爆竹工厂中生产工序危险等级分类为1.1级建筑物内同时满足总存药量小于10kg、单人操作、建筑面积小于10㎡时,其防雷类别可划为()类。
A.一
B.二
C.三
[多选题]‘年10月1日起,新增以下( )多天畅享流量包
A.沙特4日畅享流量包
B.土耳其4日畅享流量包
C.中欧4日畅享流量包
D.东欧4日畅享流量包
E.中美洲4日畅享流量包
[名词解释]调频
[单项选择]立体构成中的关系要素是指重心、()、方向形体及空间。
A. 肌理
B. 位置
C. 色彩
D. 重量

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