[填空题]A (36) of the physical and chemical nature of life must begin, not on the Earth, but in the Sun. In fact, it is at the Sun’s very center. It is here that is to be found the source of the energy that the Sun (37) pours out into space as light and heat. This energy is liberated at the center of the Sun as billions upon billions of nuclei of hydrogen atoms (38) with each other and fuse together to form nuclei of helium (氦). And, in doing so, it (39) some of the energy that is stored in the nuclei of atoms. The output of light and heat of the Sun requires that some 600 million tons of hydrogen be (40) into helium in the Sun every second. This the Sun has been doing for several thousands of millions of years.
The nuclear energy is released at the Sun’s center as high-energy gamma (41) , a form of electro-magnetic radiation like light and radio waves, only of very much shorter (42) This gamma radiation is
[单选题]消防车拆卸的工艺程序一般是:先拆去罐体,进行外部清洗,并在( )状态时,放掉并放净发动机、变速器及差速器壳内的润滑油。(中)
A.静
B.冷
C.热
D.运动
[单项选择]男,35岁。腹痛1天,初位于脐周,后转移至右下腹,现腹痛加剧,呈持续性,查体:右下腹压痛,伴肌紧张及反跳痛。该患者腹痛的发生属于()
A. 牵涉痛
B. 反射性腹痛
C. 躯体性腹痛
D. 中枢性腹痛
E. 内脏性腹痛
[判断题]作业繁忙时,为提高作业效率,避免指令超时,可以不用执行门框式作业。
A.正确
B.错误
[单选题]电阻元件的伏安特性曲线是( )时,称为线性电阻。
A.A、直线
B. B、曲线
C.C、直线或曲线
D.D、导线
[单选题]“但愿人长久,千里共婵娟”,其中“婵娟”指代什么? ( )
A. 太阳
B. 月亮
C.嫦娥
D. 姻缘
[单选题]在双线双向自动闭塞区段,反方向不设通过信号机,凭()运行。
A.路标
B.调度命令
C.机车信号的显示
D.绿色许可证
[多选题]水灰比可以影响到水泥混凝土的( )。
A.坍落度
B.耐久性
C.工艺性
D.强度
[单选题]下列说法正确的是()
A.商店建筑、展览建筑采用三级耐火等级建筑时,不应超过3层
B.营业厅、展览厅不应设置在地下三层及以下楼层
C.地下或半地下营业厅、展览厅在一定条件下可以应经营、储存和展示甲、乙类火灾危险性物品
D.儿童游乐厅等儿童活动场所当采用一级耐火等级的建筑时,可设置在地下或半地下
[单项选择]某企业5月份主营业务收入342000元,其他业务收入12000元,投资收益8000元,营业外收入3000元。5月份相应的有关费用为:管理费用18950元,财务费用13240元,营业费用1350元,主营业务成本220000元,营业税金及附加34200元,其他业务支出10600元,营业外支出2000元。该企业5月份的利润总额为()
A. 342000元
B. 55660元
C. 87800元
D. 64660元
[单选题]、手持电动工具使用必须做绝缘检查和( )后方可使用。
A.空载检查
B.通 电检查
C.接 地检查
D.按零检查
[判断题]设备检修的内容包括外部缺陷、内在缺陷、功能检查。
A.正确
B.错误
[单选题]视频生命探测仪清晰度( )(难)
A. 大于50cm
B. 大于40cm
C. 大于3m
D. 大于2cm
[单项选择]男性,34岁,因左肱骨及双股骨开放性骨折手术,4天后突发腹胀痛,呕鲜血500ml,上腹部轻压痛,无溃疡病和肝炎史,应考虑为
A. 胃穿孔
B. 出血性胃炎
C. 胃十二指肠溃疡出血
D. 食管胃底静脉曲张破裂出血
E. 胃底癌出血
[单选题]能进入接发列车进路的线路上无隔开设备或脱轨器,()手推调车。
A. 禁止
B. 可以
C. 不可以
D. 领导批准可以
[单选题]所有单位应当建立健全安全管理制度,定期检查本单位各项防范措施的( )情况,及时消除事故隐患
A. 进展
B. 执行
C. 运作
D. 落实
[判断题]《中国人民银行关于改进个人银行账户服务加强账户管理的通知》中,银行通过自助机具和电子渠道提供个人银行账户开立服务的,开户申请人只能持居民身份证办理。
A.正确
B.错误
[单项选择]Women are quite often competent drivers, but they are very seldom consistently first class. At best they are a mild hazard, at (62) potentially lethal.
A wise male driver will always give them plenty of roads and still be on the lookout for the (63) to happen.
This (64) has nothing to do with their lack of ability to cope with the (65) complexities of the vehicles; it is due to an inherent (66) which, in certain other circumstances, may be highly desirable, (67) which, behind the wheel, is deadly. It is their (68) for talking. Women together in a car yield (69) this need and when they talk they look into each other’s faces. Simple words are (70)
It is necessary for them to see the expression which (71) the words and so read the meaning the words left unsaid. (72) two
women in the front of a car repeatedly (73) each other’s attentio
A. so
B. and
C. then
D. but
[单项选择]下列指标中,不属于投资项目动态评价指标的是( )。
A. 净现值
B. 净现值率
C. 内部收益率
D. 总投资收益率
[单项选择]What does the woman suggest the man do if he has no skates
[多选题]、疏散物资作业应注意哪些安全事项?一一[多选题]
A.在评估物资存放区域建筑结构安全后方可实施疏散作业
B.利用大型工程机械进行疏散时,要充分考虑建筑结构承载能力,且不得触碰承重构件
C.科学确定疏散进出路线和疏散物资先后顺序,避免现场车辆和人员交织形成安全隐患
D.划定疏散物资存放点,检查疏散出来的物品是否夹带火种、是否稳定牢固,搬运方法是否得当,存放区域是否安全
[单选题]每( )应对全部排烟防火阀、送风阀或送风口、排烟阀或排烟口进行自动和手动启动试验一次。
A.年
B.半年
C.月
D.季度
[单项选择]《关于加强案件防控,落实轮岗、对账及内审有关要求的工作意见》规定基层营业机构负责人轮岗期限最长不超过()
A. 6个月
B. 1年
C. 2年
D. 3年