热门试题:
[单选题](单选题)正常情况下,机体有菌的部位是( )
A. 胃
B. 骨骼
C. 肌肉
D. 血液
E. 外耳道
[判断题]完全停炉时各设备内部必须化验O2≤0.4。( )
A.正确
B.错误
[多项选择]从事水上运输的船舶有()情形之一的,应当向海事管理机构申请航次船舶签证
A. 由港内驶出港外
B. 由港外驶入港内
C. 因作业需要在港内航行驶出港内泊位
D. 因作业需要在港内航行驶入港内泊位
[单选题]在烟气系统中烟气密度随( )而减小。
A.温度的升高和压力的降低
B.温度的降低和压力的升高
C.温度的升高和压力的升高
D.温度的降低和压力的降低
[单项选择]
Recent years have brought minority-owned businesses in the United States unprecedented opportunities—as well as new and significant risks. Civil rights activists have long argued that one of the principal reasons why Blacks, Hispanics, and other minority groups have difficulty establishing themselves in business is that they lack access to the sizable orders and subcontracts that are generated by large companies. Now Congress, in apparent agreement, has required by law that businesses awarded federal contracts of more than $ 500,000 do their best to find minority subcontractors and record their efforts to do so on forms filed with the government. Indeed, some federal and local agencies have gone so far as to set specific percentage goals for apportioning parts of public works eon- tracts to minority enterprises.
Corporate response appears to have been substantial. According to figures collected in 1977, the total of corporate contracts with minority businesses rose
A. Annoyed by the proliferation of "front" organizations, corporations are likely to reduce their efforts to work with minority-owned subcontractors in the near future.
B. Although corporations showed considerable interest in working with minority businesses in the 1970's, their aversion to government paperwork made them reluctant to pursue many government contracts.
C. The significant response of corporations in the 1970's is likely to be sustained and conceivably be increased throughout the 1980's.
D. Although corporations are eager to cooperate with minority-owned businesses, a shortage of capita] in the 1970's made substantial response impossible.
[单选题]顶驱盘刹刹车片如果被( )污染将失去摩擦力,应更换刹车片。
A.泥浆
B.油脂
C.灰尘
D.污水。
[单选题]1340 测量电缆绝缘电阻时,1kV 及以上电缆用( )兆欧表。
A.500V
B.1000V
C.2500V
[单选题]在Excel 2003的自动筛选中,所选数据表中的每个标题(属性名)都对应着一个______。
A. 窗口
B. 对话框
C. 工具栏
D. 下拉菜单
[单项选择]若事务T对数据R已经加了X锁,则其他事务对数据R
A. 可以加S锁不能加X锁
B. 不能加S锁可以加X锁
C. 可以加S锁也可以加X锁
D. 不能加任何锁
[单项选择]患者男性,50岁。因肝硬化腹水入院。住院期间患者突然出现淡漠少言,神情恍惚,衣冠不整,吐词不清。此时应警惕患者可能出现了()
A. 肝癌
B. 继发感染
C. 肝性脑病
D. 肝肾综合征
E. 上消化道出血
[判断题]现场处置方案中重要物资装备的名录或清单应列出应急预案涉及的重要物资和装备名称、型号、存放地点等
A.正确
B.错误
[判断题]隔离开关可以空载开合所用变。()
A.正确
B.错误
[单项选择]Joyce Swenson:
Joyce is 36 years old and has worked for a publishing company in New York city for two years. Presently, she is working as a senior editor in charge of developmental programs. An opening for a vice-presidential position has just opened. Joyce is one of four people applying for the position. The other three applicants are men who have been at the company approximately as long as she has. The requirements for the job include a master’’ s degree and a minimum of ten years experience working as a manager in a publishing company. Historically, the company has hired from within the male. Joyce has applied for promotions before but she has been passed over each time by a male candidate. When Joyce joined the company, she was single. Now she is married and has two school-aged children and one preschooler. Joyce feels she has been discriminated against because of her sex. She feels motherhood is viewed by the company as a negative factor in job promotion.
Ardith Smiths:
[判断题]单效蒸发操作中,二次蒸汽温度低于生蒸汽温度,这是由传热推动力和溶液沸点升高(温差损失)造成的。( )
A.正确
B.错误
[单项选择]GC-MS对含量很低的目标化合物的测定最好选择()定量方式。
A. 全扫描
B. 单离子检测
C. 多离子检测
[单选题]应力是产生裂纹的( ),没有应力就不会产生裂纹。
A.必要条件;
B.过程;
C.问题。
[判断题]断路器在规定的使用寿命期限内,不需要对机构添加润滑油。()
A.正确
B.错误
[单选题]白癜风患者可以多吃的是食物是
A.黑木耳、黑米饭等
B.草莓、杨梅
C.鸡肉
D.羊肉
[多项选择]按完全成本法确定的营业净利润指标有时难于被管理者理解,不便于正确决策的原因在于()。
A. 当某期销售量较上期增加时,营业净利润比上期减少
B. 当某期销售量比上期减少时,营业净利润却比上期增加
C. 当某期销售量最高时,营业净利润却不是最高
D. 当某期销售量最低时,营业净利润却不是最低
E. 当前后期产量与销量均不变时,营业净利润发生变化
[单选题]泌尿系最常见的肿瘤是
A.肾肿瘤
B.肾上腺肿瘤
C.膀胱肿瘤
D.阴茎癌
E.睾丸肿瘤
[单选题]543.黄金制品的管理中,正确的是「
A.由于某实验员经常使用黄金制品因此在领取黄金制品时可由同组的其他人代领
B.由于某实验员经常使用黄金制品,因此可由该人代为保管黄金制品
C.黄金制品在加热的过程中为防止黄金制品的氧化要将黄金制品放在火的还原焰上
D.由于黄金制品的耐碱酸性较强,因此在氢氧化钠、氢氧化钾等碱加热熔解600-C.以上)试样时,可用黄金制品作容器
[单选题]急性胰腺炎发生DIC的机制是
A.通过钙与组织因子形成复合物
B.激活凝血酶原,促进凝血酶生成
C.导致血管内皮广泛损伤
D.促使大量组织因子入血
E.引起激肽释放酶原激活
[单项选择]天王补心丹、生脉散、炙甘草汤三方均含有的药物是()。
A. 甘草
B. 大枣
C. 五味子
D. 人参
E. 以上都不是
[单项选择]能够处理某一行为出现的理论次数与实际次数之间差异的统计检验方法是( )
A. t检验
B. z检验
C. x2检验
D. F检验
[单选题]中共十二届三中全会通过的《关于经济体制改革的决定》明确指出要加快以( )为重点的整个经济体制改革的步伐。
A.农村
B.国有企业
C.城市
D.沿海地区
[单选题]85.赵先生,患消化性溃疡10余年,饮酒30min后出现剧烈上腹部疼痛,诊断为急性胃穿孔,首要护理措施为
A.立即应用镇痛剂
B.立即输血
C.禁食和胃肠减压
D.安慰并陪伴病人
E.立即补液
[单选题]套在钢丝钳(电工针子)把手上的橡胶或塑料皮的作用是()。
A..保温
B..防潮
C..绝缘
D..防尘
[单选题]只有冷弯管子时,弯曲角度才要求多弯一定角度。( )
A.正确
B.错误
[单选题]工频参考电流下的工频参考电压测量中调压设备要求,调压器的输出波形,应接近正弦波,为改善电压波形可在调压器输出端并联一台电感、电容串联的( )
A.滤波器
B.振荡器
C.稳压器
D.限流器
[判断题]工作负责人可以不经起重司机的同意登上起重机或桥式起重机的轨道。( )
A.正确
B.错误
[多选题]【多选题】
LDP消息有多种类型,其中 session message 可以实现以下哪些功能?
A.监控LDP session的TCP连接的完整性
B.终止未完成的Label Request Message
C.释放标签
D.在LDP session建立过程中协商参数
[单项选择]在筛查试验中,试验的灵敏度愈高,则()
A. 阴性预测值愈高
B. 阴性预测值愈低
C. 阳性预测值愈低
D. 阳性预测值愈高
E. 特异度愈高
[单项选择]审计机关在收到审计报告之日起多少日内将审计意见书和审计决定送达审计单位?()
A. 10日
B. 3日
C. 30日
D. 5日
[简答题]H公司与上海银行签订协定存款合同,约定期为一年,基本存款额度为500,000元。6月21日起执行,当日余额600,000元。该公司于9月21日划出100,000元,9月30日销户。请计算各阶段上海银行计付的利息。(6月21日,活期利率为0.72%,协定存款利率为1.44%;9月20日、9月30日,活期利率为0.36%,协定存款利率为1.17%;假定该期间未发生其他企业往来。)
[单项选择]最早建立我国广播电视集团公司的是( )
A. 北京市
B. 福建省
C. 上海市
D. 广东省
[单选题]准确称取草酸(H2C2O4.2H2O)63克,溶于10L水中,该草酸标准溶液的物质的量的浓度c(1/2?H2C2O4.2H2O)是( )。
A.0.10
B.0.50
C.1.0
D.63.0
[单选题]国家标准规定凡()kW以上的电动机均采用三角形接法。
A.3
B.4
C.7.5