热门试题:
[单项选择]研究表明地壳表面某些元素含量极低,难以用常规化学方法测出,但植物体内却积累得相当多。例如,碘在海带中的含量比海水高2000倍;不同种植物所含元素的多少也不同,如马铃薯富含K+、豆科植物富含Ca2+,水稻含Si多。产生上述现象的原因是()
A. 不同植物生长环境中矿质元素含量不同
B. 矿质元素的吸收是协助扩散
C. 由于遗传物质的差异导致不同细胞膜上载体的种类和数量不同
D. 各种细咆的呼吸作用强度不同
[单选题]生成组织液的有效滤过压等于:
A.(毛细血管压+组织液胶体渗透压)-(血浆胶体渗透压+组织液静水压)
B.(毛细血管压+血浆胶体渗透压)-(组织液胶体渗透压+组织液静水压)
C.(毛细血管压+组织液静水压)-(血浆胶体渗透压+组织液胶体渗透压)
D.毛细血管压+组织液胶体渗透压-血浆胶体渗透压+组织液静水压
E.毛细血管压-组织液胶体渗透压+血浆胶体渗透压-组织液静水压
[判断题] 为减小锅炉的热损失和工质损失,汽包锅炉一般都设有排污系统。判断
A.正确
B.错误
[单项选择]下列选项中属于基于页面的信息集成工具是()。
A. Authorware
B. Flash
C. FrontPage
D. Director
[单项选择]SHA是一种常用的摘要算法,它产生的消息摘要长度是
A. 64位
B. 128位
C. 160位
D. 256位
[单项选择]
American are careful about how and when they meet one another’s eyes. In their normal conversation, each eye (61) lasts only about a second before one or both individuals (62) . When two Americans look (63) into each other’s eyes, emotions are heightened and the relationship becomes more (64) . (65) , they carefully avoid this, except in appropriate circumstances.
Proper street behavior in the United States (66) a nice balance of attention and (67) . You are supposed to look at a passer-by just enough to show that you (68) his presence. If you look too (69) , you appear arrogant or secretive; too much and you’re (70) . Usually what happens is that people eye each other (71) they are about eight feet apart, at which point both cast down their eyes. In England the polite listener stares at the speaker (72) and blinks his eyes occasionally as a sign of interest. That (73)
A. at
B. on
C. of
D. to
[单选题]企业一般存款账户、专用存款账户及其他无需人民银行核准的非企业账户,变更完成后,于______工作日内通过人民银行账户管理系统向人民银行当地分支行备案。
A.2个
B.3个
C.4个
D.5个
[单项选择]工器具及生产家具购置费的计算方法为( )。
A. 设备购置费X定额费率
B. 原价+运杂费
C. 原价×(1+运杂费率)
D. 原价×(1+运杂费率)×(1+损耗率)
[单项选择]中国传统政治制度中,将郡县制度推向全国的是()
A. 西周
B. 东周
C. 秦朝
D. 汉朝
[多项选择]You need to configure the security settings for the new app servers. Which two actions should you perform?()
A. Create a Group policy object (GPO) for the web servers.
B. Create a Group policy object (GPO) for the database servers.
C. Modify the Default Domain Policy.
D. Modify the Default Domain Controllers Policy.
[单选题]肝性脑病是指
A.肝脏病症并发脑部疾病
B.肝功能衰竭并发脑水肿
C.肝功能衰竭所致昏迷
D.肝功能衰竭所致的精神紊乱性疾病
E.肝功能衰竭所致的精神神经综合征
[单选题]反应进料量一定的情况下,温度上升则歧化反应( )上升。
A.氢烃比
B.氢纯度
C.转化率
D.选择性
[单选题]19.以下为非典型的抗精神病药物的是
A.奋乃静
B.氯丙嗪
C.氟哌啶醇
D.奥氮平
E.舒必利
[单项选择]In the days before preschool academies were all but mandatory for kids under 5, I stayed home and got my early education from Mike Douglas. His TV talk show was one of my mother"s favorite programs, and because I looked up to my mother, it became one of my favorites too.
Yet I quickly developed my own fascination with Douglas, who died last week. Maybe it was the plain set—a couple of chairs and little else—or maybe it was the sound of people talking about ideas and events rather than telling stories. Whatever it was, to my 4-year-old mind it was all terribly adult, like my mother"s morning coffee. It was—relatively. The grown-up world I live in now is another matter. Thanks in part to the proliferation and polarization of talk shows in the last 20 years or so—the generation after Douglas and his
big-tent
gentility went off the air—public conversations have become scary monsters indeed.
Like other forms of entertainment, the programming of commercial talk shows today has moved beyond niche to hermetic. The idea of a host booking guests as varied as Jerry Rubin, Malcolm X and Richard Nixon—and treating them all with a certain deference, as Douglas did—is unheard of. Equally a-mazing is to consider that Douglas was a moderate; though he didn"t always share his guests" views, he nonetheless insisted on everybody having his or her say.
What he did, in other words, was more important than who he was. That was probably an easy dictate for an old-school, modest guy such as Douglas to follow. And now Oprah Winfrey is sincere e-nough, but her viewership is a cult of personality, not of people or issues. Like her contemporaries, O-prah chooses her guests and issues to suit her show, rather than allowing guests and issues to be the show. She prefers uplift and empowerment, which is more palatable than name-calling, the hallmark of Bill O"Reilly or Howard Stem. But spin is spin, and in her own way Oprah gets as tiresome as those guys. Ultimately, these shows fail to convey the fullness of the conversation, the sense that America is one place—or one host—with many voices at equal volume.
That doesn"t mean everybody"s right. But to have everybody engaged and feeling a stake in the outcome of the discussion is priceless. Engagement is nothing less than national security: I felt that as a preschooler, watching Mike Douglas on TV, and I feel it now. The age of irony, they would say, fueled by information that moves at the speed of light, demands a different approach.It can be inferred from Paragraph 1 that the author
A. was influenced by his mother.
B. didn"t like preschool academies.
C. enjoyed self-taught programs.
D. was smart in his childhood.
[单项选择]以下哪项与维持身体平衡和姿势无关()
A. 皮肤触觉、压觉、本体感觉
B. 运动系统的作用
C. 嗅觉系统
D. 前庭系统中壶腹嵴
E. 迷路内的椭圆囊斑和球囊斑两个感受器
[多项选择]关于抽样检验说法正确的有( )。
A. 抽样检验从一批产品中随机抽取少量产品(样本)进行检验,以判断该批产品是否合格的统计方法和理论,又称抽样检查
B. 抽样检验与全面检验的不同之处,在于全面检验需对整批产品逐个进行检验
C. 抽样检验则根据样本中的产品的检验结果来推断整批产品的质量
D. 如果推断结果认为该批产品符合预先规定的合格标准,就予以接收;否则就拒收
E. 采用抽样检验并不会显著地节省工作量
[单选题]临水工作时,应穿戴救生衣及防滑鞋,不得()进行临水工作。
A. A.两人
B.单人
C.三人
D.多人
[单项选择]
甲把自己的房屋转让给乙,于5月1日签订了房屋买卖合同,6月2日办理了过户手续。 |
在第77题的情形下,如果7月15日该市有一次小地震,导致该房屋坍塌,则( )。
A. 乙可以免除返还房屋的责任
B. 乙必须重新修建一座房屋,返还给甲以满足其物权
C. 乙仍然负有对甲房屋的全部损失进行赔偿的义务
D. 甲乙分担损失,乙赔偿甲一般损失
[不定项选择题]甲建筑公司为增值税一般纳税人,机构所在地为A市,从事建筑、安装、装饰等多业经营,2020年2月发生如下业务:
(1)承包B市一家毛巾生产厂的厂房改造工程,当月竣工结算,工程总价款为6550万元,发生分包支出1550万元,取得分包企业开具的增值税专用发票。
(2)承包本市一家钢铁厂的库房建设工程,本月全部完工,建设施工合同中注明工程总价款为1660万元。另外取得对方支付的提前竣工奖135万元。甲建筑公司购进用于改造工程的材料,取得的增值税专用发票上注明的含税金额为460万元。
(3)承包一家超市的装饰工程,完工后向超市收取人工费18万元、管理费3万元、辅助材料费5万元。工程主要材料由超市提供。
(4)将一处闲置仓库对外出租,取得当月租金收入33万元。
(5)转让一项已进入建筑施工阶段的在建项目,取得转让收入1300万元(含税),该项目2015年12月份开始施工(选择简易计税方法计税,购进的货物和服务单独核算,未抵扣进项税)。
已知:上述金额均为含税金额,上述业务除明确已知的外,一律按一般计税方法计税;本月无其他购进业务。
根据上述资料,回答下列问题:
(1)业务(1)应预缴的增值税( )万元。
A.91.74
B.136.36
C.145.63
D.90.09
[单选题] <初级>
重臂是( )。
A.重心到支点的距离
B.杠杆的长度
C.力点到支点的距离
D.力点到重心的距离[T/]
[判断题]安全帽在使用过程中应定期检查,发现龟裂、下凹、裂痕和磨损等异常现象可维修后继续使用,不准
再继续使用。任何受过重击、有裂痕的安全帽,不论有无损坏现象均应报废;
A.正确
B.错误
[单项选择]尿路造影显示肾盏、肾盂受压,无明显破坏及充盈缺损,提示下列哪类病变()
A. 肾盂肾炎
B. 肾外占位
C. 肾盂占位
D. 肾结核
E. 肾实质内占位
[简答题]【背景资料】
某施工单位中标承建一矿井的风井井筒及井下相关巷道工程.井筒净直径5.5m,全深450m。根据该井筒地质检查钻孔所提供的地质资料表明:井筒穿越的岩层多数为厚层泥岩,其中夹杂少量薄层砂质泥岩;井筒在深205~230m穿过两条落差小于5m的断层,断层的水文地质条件比较复杂,预计涌水量4m3/h。
该风井井筒工业广场地面较平坦.资料表明该地区历史最高洪水位为+501.5m,最近10年最高洪水位为+500.5m。
施工单位根据上述资料,编制了井筒的施工组织设计,其中井筒的防治水方案如下:
(1)考虑到预计涌水量较小,井筒施工采用了风动潜水泵加吊桶排水。
(2)为防止地面洪水,井筒临时锁口标高按高于近10年的最高洪水位考虑,确定为+500.6m。
施工期间发生了如下事件:
事件1:井筒施工到井深160m时突遇断层出水.涌水量达40m3/h.发生了淹井事故。
事件2:巷道施工期间钻孔探水时,由于钻孔设施问题和操作使用不当.发生了突水事故,影响了工期。
事件3:在工程即将完工时,恰逢雨季连续暴雨,加之附近山洪暴发,导致工业广场积水,水位高度达到+500.8m,致使积水迅速超过井口灌入矿井,发生了淹井事故,所幸井下人员及时撤离,未造成伤亡。
【问题】
1.施工单位井筒施工组织设计防治水方案存在哪些问题?说明正确的做法。
2.井筒施工期间突遇断层发生淹井事故的主要原因有哪些?
3.巷道探水钻孔钻进前,该钻孔应安装哪些设施?如遇钻孔内水压过大,应采取哪些安全技术措施?
4.矿井工业广场积水灌人矿井,所发生的淹井事故是否可定为不可抗力的自然灾害事故?说明理由。
[单项选择]某写字楼的建筑面积为8×104 ㎡,可出租面积系数为80%,公用建筑面积系数为15%,则该写字楼出租单元内建筑面积是( )×104 ㎡。
A. 5.2
B. 6.4
C. 6.8
D. 7.6
[多选题]红外精确测温时,应将( )等补偿参数输入,进行必要修正,并选择适当的测温范围。
A.大气温度
B.相对湿度
C.测温距离
D.辐射率
[单项选择]女,11个月。发热3天伴咳喘,有痰。查体:一般情况好,双肺闻及湿啰音,白细胞总数及中性粒细胞增多。X线胸片示两下肺散在斑片影。首先考虑的诊断是()
A. 急性支气管炎
B. 气管炎
C. 大叶性肺炎
D. 支气管肺炎
E. 支气管哮喘
[单项选择]()的贷款对象仅限于按时足额缴存住房公积金的自然人。
A. 委托性个人住房贷款
B. 自营性个人住房贷款
C. 经济适用住房贷款
D. 合作建房贷款
[单选题]中国人民银行用电执行()电价。
A.非居民照明电价
B.居民生活电价
C.非工业电价
D.商业电价
[多项选择]关于患者检测管理的评估,以下哪些说法是正确的()
A. 应对标本拒收标准的应用情况进行评估
B. 应对检测报告信息的完整性、有效性和准确性进行评估
C. 应对检测结果解释的合理性进行评估
D. 是否按检测的优先顺序(急诊、常规等)及时地报告患者检测结果
E. 患者不应对检测信息提出质疑
[判断题]发包单位对合同范围内的施工质量负总责
A.正确
B.错误
[单项选择]百白破疫苗的初种年龄是______
A. 2个月
B. 3个月
C. 9个月
D. 10个月
E. 12个月
[单选题]扛抬笨重物品时,每人负重量一般不得超过( )kg。 A、30 B、40 C、50 D、60
[简答题]为确保安全用火,应严格执行“三不”动火,具体内容指什么?
[单项选择]GNP代表的是()。
A. 国内生产总值
B. 国民生产总值
C. 社会生产总值
D. 国民生产净值
[简答题]请说出倒闸操作中,停、送电操作的顺序。(5.0分)
[判断题]人体与被验电的线路、设备的带电部位应保持高压线路、设备不停电时的安全距离,并应由专人监护。
A.正确
B.错误