热门试题:
[单选题]排一条发车进路需按压（）按钮。
A.1个
B.2个
C.2至3个
D.4个
[单项选择]In every cultivated language there are two great classes of words which, taken together, comprisethe whole vocabulary. First, there are those words 61 which we become acquainted in dailyconversation, which we learn, that is to say, from the 62 of our own family and from our familiarassociates, and which we should knowand use 63 we could not read or write. They concern the common things of life,and are thestock-in-trade (惯用言辞) of all who 64 the language. Such words may be called "popular,"since they belong to the people 65 and are not the exclusive possession of a limited class.
On the other hand, our language includes a multitude of words which are comparatively 66used in ordinary conversation. Their meanings are known to every educated person, but there islittle 67 to use them at home or in the market-place. Our first acquaintance with them comes notfrom our mother’s lips or from the talk of our school-mates, 68 from books that we read,lectures that we hear, or the more formal conver
A. in spite of
B. even
C. despite
D. even if
[单选题]【技能鉴定2019 技师】变压器的电导参数分别反映了变压器的（ ）。
A.漏磁损耗
B.铁损耗
C.励磁损耗
D.铜损耗
[单项选择]孕妇，妊娠27周，在产前检查中发现其血红蛋白偏低，需要补充铁剂，正确的服药时间是（）。
A. 餐前半小时
B. 餐后20min
C. 空腹时
D. 睡前
E. 晨起后
[判断题] 只有有行政处罚权的行政机关和组织才能实施行政处罚。
A.正确
B.错误
[单选题] 当采用钢管作为防护栏栏杆件时,横杆及栏杆立杆应采用脚手钢管,并应采用 ( )等方式进行连接固定。
A.扣件.焊接.螺栓
B.扣件.销轴.焊接
C.螺栓.销轴.定型套管
D.扣件.焊接.定型套管
[不定项选择题]共用题干
第一篇
What Does GMO Free Mean?
Genetically modified organisms(GMOs)in food are concern for a number of consumers who are worried about the impact that GMOs may have on their health.As a result,many companies in the late 1990s began to apply the GMO free label,indicating that their food does not contain genetically modified organisms.A number of nations legislate labeling,and in Europe,food must be labeled to indicate whether or not it contains GMOs.In the United States,however,GMO free labeling is purely voluntary and not regulated by any governmental body or organization.
Since it is not regulated,there has been some question about the validity of the GMO free label in the US.A number of organizations have pressured the Food and Drug Administration(FD
A),as well as the United States Department of Agriculture(USD
A),to enact legislation governing food labeling in regards to GMOs.Many food activists want a label that is standardized,so that consumers who are concerned about this issue can be assured about the GMO content of products they purchase.
Most US consumers have foods containing GMOs in their home.The majority of corn and soybeans grown in the US have been modified,as have several other crops.Some research indicates that many processed foods contain GMO ingredients,so for consumers who are concerned about this issue,GMO free labeling would be helpful.
For consumers who want to eat natural,organic foods,knowing that the products they buy are GMO free is often very important. Although there is no federal labeling program in the US,some organic farmers and natural food producers have chosen to start their own certification programs.Getting certified through such programs can be very difficult,but many producers believe consumers will be willing to pay extra for the verification.
The harmful nature of GMOs has been questioned,especially by commercial agriculture producers and seed providers.No scientific evidence has been found to suggest that genetic modification of crops is harmful to humans. Some consumers feel that it is important to be able to make conscious choices about what they eat,however,and want the ability to choose GMO free foods if they so desire.
Some studies suggest that GMOs may be harmful to agriculture,with cloned genetically modified species harming overall biological diversity and modified genes finding their way into wild plants and non-modified crops.This is especially true in the case of corn,where GMO contamination became a major issue in the 1990s.Other research,however,indicates that genetically modified crops can be of benefit to the environment. Plants designed to be resistant to herbicides（除草剂）and pesticides （杀虫剂）,for example,have been seen to reduce the amount of these chemicals used by farmers on both GM and non-modified crops.
A number of organizations in America have pressured the Food and Drug Administration(FD
A) to______.
A.ban foods containing GMOs
B.punish commercial agriculture producers and seed providers
C.enact legislation governing food labeling in regards to GMOs
D.abolish legislation governing food labeling in regards to GMOs
[判断题]对电力系统只能实行集中调度控制。
A.正确
B.错误
[判断题]毒害品中毒的主要途径是呼吸道、消化道和皮肤。
A.正确
B.错误
[单项选择]其毒性可用甲酰四氢叶酸钙解救的是（）
A. 环磷酰胺
B. 柔红霉素
C. 甲氨蝶呤
D. 长春新碱
E. 全反式维甲酸
[单项选择]下列哪种疾病引起的发热多不伴寒战（）
A. 疟疾
B. 大叶性肺炎
C. 伤寒
D. 流行性感冒
E. 急性肾盂肾炎
[单项选择]运用财政支出、税收、债务等作为调节经济重要工具的预算政策是（）。
A. 健全财政政策
B. 功能财政预算政策
C. 周期平衡预算政策
D. 充分就业预算政策
[判断题]车轮的轮缘磨损量超过原厚度的20%时.应更换车轮。
A.正确
B.错误
[判断题]铁路建设工程的勘察、设计、施工、监理以及建设物资、设备的采购,应当依法进行招标。
A.正确
B.错误
[单项选择]外商企业向我国境内转让技术，可以免征( )。
A. 增值税
B. 营业税
C. 企业所得税．
D. 关税
[单项选择]
Much of the research on hallucinogenic drugs such as LSD has focused on the neurotransmitter serotonin, a chemical that when released from a presynaptic serotonin-secreting neuron causes the transmission of a nerve impulse across a synapse to an adjacent postsynaptic, or target, neuron. There are two major reasons for this emphasis. First, it was discovered early on that many of the major hallucinogens have a molecular structure similar to that of serotonin. In addition, animal studies of brain neurochemistry following administration of hallucinogens invariably reported changes in serotonin levels.
Early investigators correctly reasoned that the structural similarity to the serotonin molecule might imply that LSD’ s effects arc brought about by an action on the neurotransmission of serotonin in the brain. Unfortunately, the level of technical expertise in the field of brain research was such that this hypothesis had to be tested or, peripheral tissue ( tissue outsid
A. The suppression of the activity of serotonin-secreting neurons by the administration of hallucinogens
B. The observed similarities in the chemical structures of serotonin and hallucinogens
C. The effects the administration of hallucinogens has on serotonin production in the human brain
D. Serotonin-induced changes in the effects of hallucinogens on behavior
[填空题]以工件的外圆柱表面作定位基准时，定位元件可以用圆柱孔、（）、V型块和自动定心等方式定位。
[判断题]当公司发行了不可转换的优先股时，计算时要扣除优先股分享的股利，此时每股收益=净利润÷年末股份总数。（）
[判断题] 闸板阀填加密封填料时,在确认新密封填料加够后,放下法兰压盖,将两条对应的螺栓均匀上好,使压盖不能有倾斜。
A.正确
B.错误
[判断题]起重链不得打扭.亦不得拆成单股使用。
A.正确
B.错误
[单项选择]（）是用来管理仓库内部的人员、库存、工作时间、订单和设备的软件实施工具。
A. 储管理信息系统
B. 运输管理系统
C. 配送中心信息管理系统
D. 供应链管理信息系统
[多项选择]易术语CIP中买方的基本义务包括（）
A. 办理出口清关手续
B. 承担货物交付承运人以前的一切费用和货物灭失与损坏的一切风险，以及从装运地至目的地的通常运费
C. 从对方交付货物时起，承担货物灭失和损坏的一切风险
D. 支付除通常运费之外的有关货物在运输途中所产生的各种费用和卸货费
E. 在目的地从承运人那里受领货物，并按合同规定受领单据和支付货款
[判断题]通告适用于在一定范围内公布应当遵守或者周知的事项。
A.正确
B.错误
[单选题]微机型继电保护装置的退出状态，描述错误的是(____)。
A.装置功能压板全部投入
B.出口压板全部断开
C.功能把手置于对应位置
D.装置电源空开根据实际工作需要断开或合上
[多选题]根据《加强直接作业环节安全管理十条措施》，检维修作业存在（）的，不得施工。
A.管理人不在现场
B.业主方负责人未明确
C.施工方案未审批
D.现场安全技术交底未开展
[单选题]单眼鼻侧视野缺损最常见的原因是:
A.视神经损伤
B.视交叉侧方损伤
C.视交叉损伤
D.视束损伤
E.视放射损伤
[单项选择]控制菌斑最有效的方法是
A. 正确的刷牙和牙线等机械方法
B. 化学药物
C. 由医务人员进行洁治
D. 提高机体防御能力
E. 每日刷牙保证两次
[单项选择]从学前儿童家庭教育的角度讲，（）是学前儿童家长必须具备的能力，是教育孩子的前提条件。
A. 评价孩子
B. 监督孩子
C. 了解孩子
D. 帮助孩子
[多选题]工作负责人允许变更一次。原、现工作负责人应对（ ）进行交接。必要时重新执行现场勘察。
A.组织措施
B.工作任务
C.技术措施
D.安全措施
E.略
F.略
[单项选择]What might make you think about the poor people
A. Graveyard.
B. A district with unrepaired houses.
C. Ancient buildings.
D. Low-hanging clouds.
[单项选择]51岁患者，男性，持久的胸骨后疼痛，休克，心律失常，并伴有血清心肌酶增高以及心电图改变，初步诊断为急性心肌梗死，那么在被影响的心肌区域，下列哪种代谢途径发生改变
A. 氧化磷酸化加快
B. 脂肪酸氧化加快
C. 丙酮酸转变为乙酰CoA加快
D. 乳酸生成加快
E. 酮体生成加快
[配伍题]对帕金森病患者少动、强直及震颤均有轻微改善作用的药物是|适用于震颤突出且年龄较轻的帕金森病患者的药物是
A. 苯海索
B. 金刚烷胺
C. 复方左旋多巴
D. 溴隐亭
E. 氟哌啶醇
[单选题]轻瓦斯动作后,( )。
A.跳开变压器高压侧断路器
B.跳开变压器低压侧断路器
C.只发信号,不跳开关
[判断题] 处置现场可能接触到人员、动物尸体或体液时,消防员不用佩戴口罩、眼罩和医用手套,做好卫生防疫措施。
A.正确
B.错误
[单选题]受限空间作业应定时监测,至少每()监测一次。
A.1h
B.3h
C.2h
[判断题]在正线、到发线上调车时，须经过列车调度员（车站控制时为站长）准许。
A.正确
B.错误
[单选题]堤防工程干砌石护坡单元工程施工质量标准对护坡厚度每检测（ ）1处，厚度小于50cm，允许偏差为±5cm；厚度大于50cm，允许偏差为±10%。
A.50～100㎡
B.100～200㎡
C.200～300㎡
D.300～400㎡
[单选题]属于潮州地区传统风味的一组菜肴是( )。
A.佛手排骨、玫瑰焗双鸽、云腿护国菜
B.爽口牛丸、烧雁鹅、姜蓉白切鸡
C.扁米酥鸭、回锅肉、酥香果肉
D.云腿护国菜、烧雁鹅、香滑芋泥
[单选题] 从事卷烟、雪茄烟生产的企业生产的卷烟、雪茄烟应100%在线( );不得无码生产、无码备货、超备货计划备货。
A.检测质量
B.完成包装
C.质量监督
D.打码入库
