热门试题:
[判断题]会计职业道德可以预防会计从业人员的错误会计行为,但无法调节会计活动()
[判断题]首次使用“邓小平理论”概念是党的十五大。( )
[判断题]无砟轨道线路动态检查周期规定:工务段应使用便携式线路检查仪添乘检查线路,每月至少检查1遍。
A.正确
B.错误
[多项选择]阵发性室上性心动过速的治疗下列哪些是正确的()
A. 腺苷快速静脉
B. 米力农静注
C. 洋地黄静注
D. 艾司洛尔静注
E. 维拉帕米静注
[单选题]电子会计档案管理系统永久保管的电子会计档案(包括会计档案保管、销毁记录),应按()打印为纸质会计档案保管。
A.日
B.月
C.季
D.年
[单选题]我国消防工作的方针是?( )
A.群防群治
B.遏制重特大火灾
C.预防为主,防消结合
[单选题]车站须在首班载客列车到站前()分钟完成TVM补币、补票工作,运营结束后完成TVM日结操作。
A.30
B.50
C.40
D.60
[判断题]’年版第五套人民币5角硬币材质由钢芯镀镍调整为钢芯镀铜合金的主要原因是钢芯镀镍材料根据国家产业政策属拟淘汰的落后工艺。( )
A.正确
B.错误
[单项选择]船舶从全速前进至全速后退,一般情况下,内燃机船的换向时间约需()。
A. 90~120秒
B. 120~180秒
C. 60~90秒
D. 30~60秒
[判断题] 汽车罐车和铁路罐车定期检验过程中的气密性试验必须在耐压试验合格后进行。()
A.正确
B.错误
[判断题]车站值班员可在中控情况下操作道岔。(1.0分)
A.正确
B.错误
[单选题]线路允许速度大于160 km/h时,在困难条件下,正线道岔(直向)与曲线超高顺坡终点之间的直线段长度不应小于( ) m。
A.20
B.30
C.40
D.50
E.60
F.70
[简答题]《广深港高速铁路跨境旅客运输组织规则》越站区间未涉及广深港线路的,补收( )票价,核收手续费。
[不定项选择题]共用题干
Cooking Oil Fumes Cause Tumor
The leading cause of lung cancer among women in the city was cooking oil fumes while men are more likely to develop the disease from smoking,said medical experts after a five-year research study.
Doctors announced the results yesterday with analysis on some new tendencies in lung cancer. They said patients are younger,especially women.
According to the Shanghai Tumor research Institute,more local residents die of lung cancer in the city than anything else.Following breast cancer,it has the second-highest incidence rate.
“An unhealthy lifestyle is a very important reason for lung cancer,”said Dr He Yumin from Shanghai Minshen Traditional Chinese Medicine Tumor Diagnosis and Treatment Center.
He followed 2,276 lung cancer patients for five years.Among them,1,483 were male.
Smoking causes 70 percent of cases among men while only 18 percent of female patients developed cancer from smoking or inhaling second-hand smoke,according to the report.
However,more than 60 percent of women with the disease had long term,close contact with strong oil fumes from cooking and complained about irritated eyes and throat.
About 32 percent of women fried foods in boiling oil in unventilated kitchens and about 25 percent of women's bedrooms were adjacent to the kitchen.
However,local women were surprised to learn cooking oil fumes could lead to cancer.
Some claimed they may change food preparation methods.
“Unless my family and I don't eat at home every day,I must stay in the kitchen to cook,”said Xu Li,a 45-year-old local woman. “I know the fumes are bad for the skin,but it is the first time I heard that it can result in lung cancer. I have already started frying less.”
Doctors said women's lung cancer had few links to personal health and physical condition,but was closely related to family cancer history,unhealthy dietary habits and weak immune systems.
Other experts agreed with him.
“Smoking is by far the biggest cause of lung cancer for men,”said Dr Tan Binyong, honorary president of the Respiratory Disease Institute at Fudan University's Medical College.“It's true that second-hand smoke and cooking fumes are the main causes among women.”
His research also warned people not to stand near of stalls selling fried foods due to the poor quality of oils used.
The chance of catching lung cancer is three times higher if exposed to the fume for a long time,6 experts said.
What symptoms may be complained of by most women with lung cancer after long term close contact with cooking oil fumes?
A.Irritated eyes and throat.
B.Severe pain in both lungs.
C.Continuous cough and headache.
D.Difficulty in breathing.
[判断题]信息时代,影响战争胜负的主导力量由装甲和机械转变为基于感知的精确控制。
[单选题]甲公司预计未来5年的企业自由现金流量分别为100万元、120万元、140万元、180万元和200万元,根据公司的实际情况推断,从第6年开始,企业自由现金流量将维持200万元的水平。假定加权平均资本成本为10%,现金流量在期末产生,甲公司的永续价值在评估基准日的现值约为( )。
A.1671万元
B.1784万元
C.2000万元
D.1242万元
[单选题]道路驾驶训练的路线和时间由( )。
A.驾校确定
B.公安机关交通管理部门指定
C.学员提出
D.教练员选择
[单选题] 超声发现肾实质内高回声团,边界清晰,常见疾病是:
A.肾细胞癌
B.肾Wilms瘤
C.肾囊肿出血
D.肾血管平滑肌脂肪瘤
E.肾结核
[多项选择]市场营销控制过程主要包括以下哪几个步骤( )
A. 管理部门评估广告投入效果、不同渠道的资源投入,及时采取正确的行动,以此弥补目标与业绩之间的差距
B. 管理部门设定具体的市场营销目标,通常对不同的营销活动或单独的项目,如新基金的发行等制定不同的预算
C. 衡量企业在市场中的销售业绩,检查销售时间表是否得到执行
D. 分析目标业绩和实际业绩之间存在差异的原因以及预算收支不平衡的原因
[单选题]“设备本身及周围环境和处理方式出现不正常情况,一般不威胁设备的安全运行,可列入小修计划进行处理的缺陷”以上是指一般缺陷。
A.A、正确
B.B、错误
[单选题]对已销户用户,设备运维部门原则上应在()个月内安排分界设备拆除工作。
A.一
B.二
C.三
D.六
[多选题]断开( )以及带有()的客户的连接点开关后,应验明可能来电的各侧均无电压。
A.双电源
B.多电源
C.分布式电源
D.自备电源
[单项选择]下列组合哪一项是错误的()
A. 过敏性紫癜-血管性紫癜
B. 特发性血小板减少性紫癜-自身免疫产生抗血小板抗体
C. 血栓性血小板减少性紫癜-微血管病性溶血
D. 单纯性紫癜-黏膜内脏出血而无皮肤出血
E. 老年性紫癜-出血多见于手、足、前臂等处
[单项选择]患儿,3岁,因乳牙呈棕黄色就诊。检查:全口乳牙呈半透明棕黄色,磨损严重,X线片示牙髓腔明显缩小,根管呈细线状。其父亲的恒牙列有相似症状。该患儿所患疾病为()
A. 牙髓坏死
B. 色素沉着
C. 四环素牙
D. 氟牙症
E. 遗传性乳光牙本质
[单选题]淤浆催化剂的还原比是指( )
A.T3/DC
B.DC/T3
C.T3/THF
D.DC/THF
[多选题]对无法进行直接验电的设备、高压直流输电设备和雨雪天气时的户外设备,可以进行间接验电,即通过设备的( )及各种遥测、遥信等信号的变化来判断。
A.机械指示位置
B.电气指示
C.带电显示装置
D.仪表
[判断题]( )甘油与水作用会发生化学自热着火。()
A.正确
B.错误
[单项选择]联系强度是指企业与目标客户之间开展的链接的程度和数最。下列不适合度量联系强度的是()
A. 客户隔多久访问网站
B. 客户采购金额的大小
C. 客户有多少与企业的接触点
D. 客户如何充分地使用网站
[判断题]跨区间无缝线路应采用60kg/m及以上钢轨。
A.正确
B.错误
[判断题]发现有人触电要设法及时关断电源;或者用干燥的木棍等物将触电者与带电的电器分开,不要用手去直接救人。( )
A.正确
B.错误
[填空题]He works the hardest in the office.
He works ______ than others in the office.
[单项选择]患者因下前牙牙龈反复出现瘘管,X线片显示根管钙化,根尖周暗影较大,经过多次正规根管治疗根管不通,拟行根尖手术下列说法错误的是()
A. 根尖切除的长度约为2mm
B. 理想修复形式是牙根面形成硬骨板,与根周硬骨板相连
C. 牙根断面为唇颊向斜面
D. 倒充填术备洞深度为1~2mm
E. 玻璃离子水门汀可作为倒充填术的充填材料
[判断题]按用列车实际走行距离与装置存储距离相比较的方式,过机误差分为“滞后误差”和“超前误差”。()
A.正确
B.错误
[单项选择]儿童期、青春期发育遵循的规律是()
A. 头尾发展律
B. 向心律
C. 正侧律
D. 生长轨迹现象
E. 赶上生长
[单选题]当发现配电箱、电表箱箱体带电时,应( ),查明带电原因,并作相应处理。
A.检查接地装置
B.断开上一级电源
C.通知用户停电
D.先接地
[单项选择]打开123.DOC文档,编辑并执行了撤消、保存命令,再进行“保存”操作后,则______。
A. 撤消命令无效,恢复命令无效
B. 撤消命令有效,恢复命令无效
C. 撤消命令无效,恢复命令有效
D. 撤消命令有效,恢复命令有效