Irradiating Food Irradiating fruits, vegetables, pork and chicken to kill insects and bacteria has been approved by the Food and Drug Administration over the past decade or so. Irradiation of other meats, such as beef and lamb, is being reviewed. Federal approval does not require that industry adopt the process, and few food processors presently offer irradiated products. Market studies have shown that many consumers are afraid that eating irradiated foods may cause cancer, despite scientific studies that prove the safety of treated foods. Some people argue that more severe government inspection, higher food-safety standard and more careful-preparation practices by consumers are all that is needed to ensure that [判断题]现场作战指挥部应当成立安全检查组,由指挥人员、建筑结构专家等组成。
A.正确 B.错误 [单选题]018 4 1 4
开侧线泵时,泵容易出现( )现象。 A. 倒转 B. 自停 C. 抽空 D. 着火 [单选题]男患,30岁,转移性右下腹痛10小时,并恶心,呕吐,吐物为胃内容,量少并发热,体温约38.2℃,脉搏98次/分,右下腹压痛,反跳痛肌紧张,血WBC 为1.2×10的10次方/L,中性90%,尿常规WB C 8~10/HP,红细胞2~3/HP。该患者最可能诊断
A.急性胆囊炎 B.消化性溃疡穿孔 C.急性化脓性阑尾炎 D.急性胰腺炎 E.急性肠梗阻 [判断题]临时用电户如容量许可,可以向外转供电。
A.正确 B.错误 [单项选择]
Passage Four If we had to rely on only five senses for survival, we would be in very sad shape indeed. We wouldn’t know up from down. We wouldn’t know when to eat or drink. We wouldn’t know what our muscles were doing or what position our limbs were in. We wouldn’t know when our body was damaged, because we wouldn’t feel pain. We might freeze to death without even a shake, or overheat without a drop of sweat. The five senses--touch, taste, smell, hearing and sight--respond only to stimulation from the out- side world, but the inside world of our bodies must also receive and respond to important messages. Our internal senses keep us alive and enable us to use our external senses. In effect, the internal senses tell our brains how to run our bodies. Hunger and thirst register in a part of the brain called the hypothalamus, when a lack of food chemicals are detected in the blood. Another internal sense that controls our balance is maintained by t [单选题]强制性国家标准代号是( )。
A./T B.GB [单选题]脑出血最常见的病因是
A.脑动脉瘤 B.高血压 C.血液病 D.脑动脉炎 E.脑动静脉畸形 [单选题]距扬声器正前方3m处应急广播的播放声压级满足要求的是( )dB
A.35 B.45 C.55 D.65 [单项选择]在投资建设领域落实科学发展观的首要因素是( )
A. 推动科技创新 B. 实现投资建设领域决策和管理的科学化 C. 对投资建设项目进行多目标分析 D. 尊重咨询专家 [多选题]脂肪酸的分类系统有( )。
A.按照碳链的长短分类 B.按照脂肪酸的饱和程度分类 C.根据营养学或生理作用分类 D.根据碳原子的n编号系统分类 E.根据碳原子的ω编号系统分类 [单项选择]结构化生命周期方法的基本思想是用系统工程的思想和工程化的方法,按( )自顶向下地对系统进行分析和设计。
A. 质量第一 B. 自顶向下 C. 先易后难 D. 用户至上的原则,结构化、模块化 [简答题]到国外旅游时哪些场所不能随便拍照?
[简答题]请简述闸机的运营模式
[多项选择]持线路或电缆工作票进入变电站或发电厂升压站进行架空线路、电缆等工作,应增填工作票份数,由变电站或发电厂工作许可人许可,并留存。上述单位的()名单应事先送有关运维管理单位备案。
A. 工作票签发人 B. 工作负责人 C. 工作班成员 D. 专责监护人 [单项选择]含血清的培养基的灭菌方法是()
A. 干烤灭菌 B. 煮沸消毒 C. 间歇灭菌 D. 压力蒸汽灭菌 E. 巴氏消毒 [判断题]一般情况下设计弧垂允许偏差:ll0kV及以下线路为+2.5%、-2.5%,220kV及以上线路为+5.0%、-2.5%,而导、地线弧垂超过上述偏差值属不合格。
A.正确 B.错误 [单选题][AF]SQL注入是一种常见且危害很大的攻击方 式,以下的攻击属于SQL注入的是?( )
A. http://www.example.com/news.php7idE’ orT='1 B. http://www.example.com/news.php? id=1 &net user admin admin /add C. http://www.example.com/news.php? id=1%3cscript%3econfirm(%27hello%2cwo rld!%27)%3c%2fscript%3e D. http://www.example.com/news.php? id=1=1 [单项选择]关于急性重症病毒性心肌炎的诊断标准的叙述,以下不正确的是()
A. 合并急性肾功能衰竭 B. 急性心力衰竭 C. 明显胸痛、气短 D. 严重心律失常 E. 心肌梗死样心电图改变 [单项选择]下列工作中,不属于数据库管理员(DBA)的职责的是______。
A. 建立数据库 B. 输入和存储数据库数据 C. 监督和控制数据库的使用 D. 数据库的维护和改进 [判断题]进入锅炉/窑炉设备内部作业时,应安排专人监护,同时应有可靠的联络措施,明确作业时间。
A.正确 B.错误 [单项选择]A team of programmers is reviewing a proposed API for a new utility class. After some discussion,they realize that they can reduce the number of methods in the API without losing any functionality.If they implement the new design, which two OO principles will they be promoting?()
A. Looser coupling B. Tighter coupling C. Lower cohesion D. Higher cohesion E. Weaker encapsulation F. Stronger encapsulation [判断题]神经胶质细胞不能够传导兴奋
A.正确 B.错误 [单选题]土地征用、规划报建资料由( )部门收集整理。
A.基建部 B.办公室 C.计划发展部 D.财务部 [单项选择]为了保证图像质量,显像前技术人员需要作相应准备工作认真核对和确定检查项目是指
A. 正确的放射性药物制备 B. 准确理解申请单 C. 选择合适的准直器 D. 合适的采集矩阵大小 E. 正确的患者体位 [单选题]施工机具应定期进行维护、保养。施工机具的( )部分应保持润滑。
A.转动和传动 B.转动和机电 C.传动和机电 D.链接和电气 [单项选择]支气管哮喘典型的临床症状是
A. 反复发作性伴有哮鸣音的呼气性呼吸困难 B. 干咳 C. 胸痛 D. 喀血 E. 胸闷 [单项选择]生态系统的生产者包括()。
A. 所有的绿色植物和某些动物 B. 所有的绿色植物和某些细菌 C. 所有的绿色植物和某些真菌 D. 仅指所有的绿色植物 [单选题][难度:0.5][分数:1]设备内的滚珠丝杠螺母副一般采用( )防护方法。
A.伸缩套筒 B.锥形套筒 C.折叠防护罩 D.塑料迷宫密封圈 [单选题]51.【单选题】输液引起急性循环负荷过重(肺水肿)的特征性症状是
A.咳嗽、呼吸困难 B.心慌、恶心、呕吐 C.发绀、烦躁不安 D.咳嗽、咳粉红色泡沫性痰、气促、胸闷 E.胸闷、心悸伴呼吸困难 [单选题]无居民海岛属于国家所有,由( )代表国家行使所有权?
A.中国公民 B.所属地方人大及其常委会 C.所属地方人民政府 D.国务院 [单项选择]尿蛋白加热醋酸法试验中结果呈明显白色颗粒状浑浊、无絮状沉淀,应报告为()
A. ± B. + C. ++ D. +++ E. ++++ 我来回答: 提交
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