热门试题:
[单选题]《普规》规定：接近色灯信号机显示一个绿色灯光和一个黄色灯光，表示（）。
A.表示进站信号机开放一个绿色灯光或一个绿色灯光和一个黄色灯光
B.表示进站信号机开放一个黄色灯光
C.表示进站信号机在关闭状态
D.表示进站信号机显示两个黄色灯光或一个黄色闪光和一个黄色灯光
[单选题]未经医师注册取得执业证书的
A.可在预防机构从事医师执业活动
B.可在保健机构从事医师执业活动
C.可在执业医师指导下，在预防、保健机构，从事医师执业活动
D.可在执业医师指导下从事医师执业活动
E.不得从事医师执业活动
[单项选择]中毒解救的首要步骤是( )。
A. 洗胃
B. 催吐
C. 加速药物排泄
D. 清除未吸收的毒物
E. 药物拮抗
[判断题]体检合格证申请人涂改或者伪造、变造、倒卖、出售体检文书及医学资料的，地区管理局依据情节，可对当事人处以1000元以上罚款。
A.正确
B.错误
[多项选择]进行某测试点GPRSCQT测试时，手机接收电平较好，但GPRSFTP下载时频繁出现比较大的BLER（平均BLER在0.5％以上）和下行的重传，则以下哪些原因可能造成该情况发生？（）
A. 小区与其它小区间存在频率干扰
B. 小区PDCH数目设置少
C. PDCH对应硬件载频问题
D. 占用小区GSM话务负荷较高
[填空题]“创作方法”这一概念最早是由德国作家（）提出的。
[单选题]开断电缆以前，应与电缆走向图图纸核对相符，并使用专用仪器（如感应法）确切证实电缆无电后即可工作。0 （1分）
A.正确
B.错误
[单选题]公安机关的根本政治属性是( )。
A.“四个自信”
B.“公安姓党”
C.“两个维护”
D.“四个意识”
[单项选择]Between the invention of agriculture and the commercial revolution that marked the end of the Middle Ages, wealth and technology developed slowly indeed. Medieval historians tell of the centuries it took for key inventions like the watermill or the heavy plow to diffuse across the landscape. During this period, increases in technology led to increases in the population, with little if any appearing as an improvement in the median standard of living.
Even the first century of the industrial revolution produced more "improvements" than "revolutions" in standards of living. With the railroad and the spinning and weaving of textiles as important exceptions, most innovations of that period were innovations in how goods were produced and transported, and in new kinds of capital, but not in consumer goods. Standards of living improved but styles of life remained much the same.
The eighteenth and nineteenth centuries saw a faster and different kind of change. For the first time, tech
A. are impossible to compare across centuries.
B. are more expensive than the nineteenth century.
C. are cheaper than they were in the nineteenth century.
D. need to be measured by comparing upper-class essentials such as having a butler.
[不定项选择题]共用题干
第三篇
Some People do Not Taste Salt Like Others
Low-salt foods may be harder for some people to like than others,according to a study by a Penn State
College of Agricultural Sciences food scientist. The research indicates that genetic factors influence some of
the difference in the levels of salt we like to eat.
Those conclusions are important because recent,well-publicized efforts to reduce the salt content in
food have left many people struggling to accept fare that simply does not taste as good to them as it does to
others,pointed out John Hayes,assistant professor of food science,who was lead investigator on the study.
Diets high in salt can increase the risk of high blood pressure and stroke.That is why public health ex-
perts and food companies are working together on ways to help consumers lower salt intake through foods that
are enjoyable to eat. This study increases understanding of salt preference and consumption.
The research involved 87 carefully screened participants who sampled salty foods such as soup and
chips,on multiple occasions,spread out over weeks.Test subjects were 45 men and 42 women,reportedly
healthy,ranging in age from 20 to 40 years.The sample was composed of individuals who were not actively
modifying their dietary intake and did not smoke cigarettes.They rated the intensity of taste on a commonly
used scientific scale,ranging from barely detectable to strongest sensation of any kind.
"Most of us like the taste of salt. However,some individuals eat more salt,both because they like the
taste of saltiness more,and also because it is needed to block other unpleasant tastes in food."said Hayes.
"Supertasters,people who experience tastes more intensely,consume more salt than do nontasters.Snack
foods have saltiness as their primary flavor,and at least for these foods,more is better,so the supertasters
seem to like them more."
However,supertasters also need higher levels of salt to block unpleasant bitter tastes in foods such as
cheese,Hayes noted."For example,cheese is a wonderful blend of dairy flavors from fermented milk,but
also bitter tastes from ripening that are blocked by salt,"he said."A supertaster finds low-salt cheese un-
pleasant because the bitterness is too pronounced．"
Hayes cited research done more than 75 years ago by a chemist named Fox and a geneticist named
Blakeslee,showing that individuals differ in their ability to taste certain chemicals.As a result,Hayes ex-
plained,we know that a wide range in taste acuity exists,and this variation is as normal as variations in eye
and hair color.
"Some people,called supertasters,describe bitter compounds as being extremely bitter,while others,
called nontasters,find these same bitter compounds to be tasteless or only weakly bitter."he said."Re-
sponse to bitter compounds is one of many ways to identify biological differences in food preference because
supertastmg is not limited to bitterness."
The fourth paragraph describes briefly_________.
A.the purpose of the study
B.the analysis of the research results
C.the research methodology
D.the conclusion of the study
[单选题]因施工需要，进、出车站不一致时，作业负责人应在登记时注明( )。
A.销记时间
B.销记人员
C.登记车站
D.销记车站
[单项选择]
Her package looks pretty, people will buy just about anything. So says an advertising executive in New York, and he has proved his point by selling boxes of rubbish for the price of an expensive bottle of wine. Justin Gignac, 26, has sold almost 900（1）presented plastic boxes of rubbish from the street of the Big Apple at between ＄50 and ＄100 each. Buyers from 19 countries have paid for the souvenirs(纪念品). The idea has been so successful that he is thinking of promoting it around the world. It all began when Mr. Gignac was at a summer workshop. “We had a discussion about he importance of （2）,” he recalls. “Someone said packaging was unimportant. I disagreed. The only way to prove it was by selling something nobody would ever want.” He searches the streets of Manhattan and typical（3） include broken glass, subway tickets, Starbucks cups and used （4） forks. “Special editions” are offered at a high price. He charged ＄100 for rubbish from the opening
A. contents
B. taking
C. carefully
D. plastic
E. packaging
F. declined
G. similar
H. typical
I. contracts
J. registered
[单项选择]公司营业用主要资产的抵押，出售或者报废一次超过该资产的( )属内幕信息。
A. 10%
B. 20%
C. 30%
D. 40%
[多项选择]病例对照研究的局限性包括（）。
A. 适用于罕见病的研究
B. 不适于研究人群中暴露比例很低的因素
C. 选择研究对象时难以避免选择偏倚
D. 不可以判断暴露与疾病的时间先后顺序
E. 获取信息时难以避免回忆偏倚
[单选题]不能用防火墙分隔的开口部位，宜设置( )。
A.干式系统
B.水幕系统
C.雨淋系统
D.湿式系统
[多选题]强制送风呼吸器由( )组成。
A.防护头罩
B.过滤装置
C.面罩
D.送风机
E.呼吸管
[单选题]下列关于分水器设置的表述中,错误的是( )。
A.同一分水器前的水枪阵地标高差不宜超过20m。
B.进入闷顶的水枪,不宜与室外地面水枪合用分水器。
C.两支水枪间的距离相距80m以上时,不宜合用分水器。
D.实施向纵深进攻的水枪,不宜与室外水枪阵地合用分水器。
[单项选择]从事公关工作，需要遵守一定的规章制度，下列说法正确的是（）。
A. 有人监督就遵守
B. 有折不扣地遵守
C. 认为合理的就遵守
D. 自觉遵守
[多项选择]MQ2533门机变幅不动作的原因有（）。
A. 变幅零位故障
B. 变幅制动器检测故障
C. 附缆电缆卷筒投入
D. 减幅极限
[单选题]桥墩通常都是上小下大,一般都有( )坡度。
A.10:1~20:1
B.15:1~25:1
C.20:1~40:1
D.30:1~50:1
[单项选择]患者女，56岁。因"左耳前肿块2个月余"就诊，体检发现左耳前触及一个3cm×2cm质硬肿块，固定，边界不清，轻压痛。伴左面部感觉减退。手术过程中发现该患者左侧腮腺肿瘤与左侧面神经颞面干有粘连，但患者没有面神经麻痹表现，应该如何处理（）
A. 切除左侧面神经，术后补充放疗
B. 切除左侧面神经，术后不放疗
C. 保留左侧面神经，术后补充放疗
D. 保留左侧面神经，术后不放疗
E. 切除左侧面神经颞面干，术后补充放疗
F. 切除左侧面神经，术后补充化疗
[判断题]( )《高速铁路无砟轨道维修规则》表7.2.3规定：道岔保养质量评定标准，无砟轨道，岔枕、道床板、支承层（或底座）、道岔板，预埋套管连续失效全面查看，毎个扣8分。
A.正确
B.错误
[多选题]建设项目的环境影响报告书应当包括下列内容：（）
A.项目概况
B.周围环境现状
C.对环境影响的经济损益分析
D.实施环境监测的建议
[单选题]3.66. 第66题
以架空线进线的低压非居用户的责任分界点是（ ）。
A.接户线末端
B.进户线末端
C.电能表进线端
D.电能表出线端
[单选题]单相桥式可控整流电路电感性负载无续流管,控制角α=30°时,输出电压波形中( )。
A.不会出现最大值部分
B.会出现平直电压部分
C.不会出现负电压部分
D.会出现负电压部分
[单选题]【安全技术等级考试公共安全一级单选题】7 关于安全生产领域有关协会组织发挥的作用，表述错误的是( )。
A. 为生产经营单位提供安全生产方面的信息服务
B. 为生产经营单位提供安全生产方面的培训服务
C. 加强对生产经营单位的安全生产管理
D. 发挥自律作用
[单选题]楼板、屋面和平台等面上短边尺寸小于()但大于 2.5cm 的孔口必须用坚实的盖板盖 没。
A.20cm
B.25cm
C.30cm
D.35cm
[单项选择]下列不属于《四书》的著作是（）。
A. 《大学》
B. 《论语》
C. 《中庸》
D. 《春秋》
[多选题]根据《工程建设项目招标投标活动投诉处理办法》（七部委11号令），投诉书格式不符合下列哪些要求的（），投诉不予受理。
A.未署具投诉人真实姓名
B.未签字
C.未注明有效联系方式
D.以法人名义投诉的，投诉书未经法定代表人或授权代表签字并加盖公章
[多项选择]
病历摘要：患者男性，23岁，因发热1周，咳嗽、咯血丝痰2天入院。患者2周前到外地出差，1周前返回后即出现发热，体温最高达39.8℃，呈持续性，午后尤甚，伴全身疼痛，头痛，无咳嗽、咳痰、乏力、盗汗等症状。到当地医院就诊，查体发现双侧扁桃体肿大，化验血常规示：WBC12.5×109／L，N79.9％，予头孢呋辛1.5，bid，iv，4天，患者体温无下降。2天前出现咳嗽、咳少量白色粘稠痰，并间有血丝痰，伴胸痛不适及腹泻，为稀水样便，无脓血黏液，无腹痛。既往体健，从事网络工程工作，未到过疫区或牧区。体查：T39.5℃，P88bpm，R24bpm，BP120/60mmHg。神清，急性病容，皮肤黏膜无黄染、出血点，浅表淋巴结无肿大。口唇无紫绀，咽充血，扁桃体不大。双肺呼吸音粗，双下肺可闻及少许中细湿性啰音。心率88bpm，律齐，无杂音。腹软，无压痛、反跳痛及腹肌紧张，肝脾肋下未触及。无杵状指（趾）。
以下哪些抗生素可用于军团菌肺炎的有效治疗？（）
A. 红霉素
B. 利福平
C. 阿齐霉素
D. 克拉霉素
E. 左氧氟沙星
F. 多西环素
[单选题]四显示自动闭塞区段进站色灯信号机显示（ ）表示不准列车越过该信号机。
A.一个绿色灯光
B.一个红色灯光
C.一个黄色灯光
D.一个绿色灯光和一个黄色灯光
[单项选择]急进性肾小球肾炎主要的病理改变为（）
A. 肾小球上皮下驼峰样沉积物
B. 弥漫内皮系膜细胞增生性改变
C. IgG沉积
D. 肾小囊有大量新月体形成
E. 可见白细胞浸润
[判断题]( )40.PLC梯形图编程时,输出继电器的线圈可以并联放在右端。
A.正确
B.错误
[单项选择]近绝经期的重症病人，给予（）
A. 观察治疗
B. 保留生育功能手术
C. 性激素治疗
D. 保留卵巢功能手术
E. 根治性手术
[单选题]当一根电缆的载流量不能满足要求，需将两根电缆并联使用时，其额定电流( )两根电缆额定电流之和。
A.等于
B.大于
C.小于
D.大于等于
