热门试题:
[单项选择]两个或两个以上模块之间关联的紧密程度称为( )。
A. 耦合度
B. 内聚度
C. 复杂度
D. 数据传输特性
[判断题]独资企业是指由个人独资经营,归个人所有和控制的企业。( )
[不定项选择题]共用题干
Stem Cell Therapy May Help Repair the Heart
According to scientists in the USA,stem cell therapy may one day be able to repair the
hearts of people with heart failure.Researchers at Pittsburgh University School of Medicine
examined 20 patients who had severe heart failure and were going to have surgery.
They injected stem cells into the parts of their hearts that were damaged.They then
compared their hearts with those of people who had undergone surgery without having the
stem cells injected into them(they had also suffered from severe heart failure).The
patients who had had the stem cells injected had hearts that were able to pump(用泵抽运)
more blood than the others.
According to Professor Robert Kormos,one of the researchers,these results could
revolutionize heart treatment.Although previous studies had indicated that there might be a
benefit,this is the first study that has actually proved that stem cell therapy can help the
failing heart work better.
All the patients in this study had hearts that could not pump blood properly.The
scientists measured their ejection fraction(射血分数).This is a measure of heart
performance;you measure how much blood is being pumped out by the left ventricle(心
室).
Healthy people's ejection fraction is about 55%.These patients had ejection fraction of
under 35%. They all had by-pass surgery(搭桥手术)performed on them. Some of the
patients had stem cells taken from their hip bones and injected into 25-30 sites in the
damaged heart muscle.Six months later their ejection fraction rate was 46.1%while those
who just had surgery but no stem cell injections averaged 37. 2%.
No side effects were reported.
Heart failure is a common problem all over the world.In the UK alone about 650, 000
people suffer from heart failure every year. As the number of people suffering from heart
failure increases in the world in general these findings are particularly significant.
Current treatments relieve the symptoms.This new stem cell therapy actually repairs
the damaged muscle in the heart and has the potential of curing the disease.
Heart failure is more common in the UK than anywhere else in the world.
A.Right
B.Wrong
C.Not mentioned
[单项选择]肾由几部分结构构成:①肾实质、肾窦;②肾皮质、肾髓质;③肾锥体、肾柱、肾乳头;④肾盏、肾盂、肾动脉、肾静脉、脂肪
A. ①
B. ①②
C. ①②③
D. ①③④
E. ②③④
[单项选择]胎儿宫内发育迟缓继续妊娠的指征不包括
A. 胎儿尚未足月
B. 胎儿已经足月
C. 宫内监护情况良好
D. 胎盘功能好转
E. 孕妇病情稳定
[多选题]根据力量部署和现场情况,明确战斗区段通信方式和手段,视情架设( )和()。[3分]
A.无人机
B.中继台
C.对讲机
D.图传设备
[判断题]烟草专卖局依法对烟草专卖许可证持证人的生产经营活动进行监督检查后,并将监督检查的情况和处理结果予以记录,随即就可归档。( )
A.正确
B.错误
[单选题]内蒙古高原西端分布有巴丹吉林、腾格里、乌兰布和、库布其、毛乌素等沙漠,总面积( )万平方公里。
A.5
B.8
C.10
D.15
[单选题]发生生产安全事故,对负有责任的生产经营单位除要求其依法承担相应的赔偿等责任外,由( )依照规定处以罚款。
A.应急管理部门
B.法院
C.税务部门
D.市场监管部门
[单选题]会计要素是对( )的基本分类。
A.会计核算
B.会计对象
C.会计主体
D.会计科目
[判断题]年度终了,根据本年度财政直接支付预算指标数与当年财政直接支付实际支出数的差额,借记“财政应返还额度—财政直接支付”科目,贷记“财政补助收入”科目;下年年初,对恢复财政直接支付额度不作会计处理,实际发生支出时作会计处理。
[多选题]同一机柱上的信号机构应符合()等要求.
A.各灯位显示方向一致
B.两个同色灯光的颜色一致
C.各灯位显示方向根据需要可不一致
D.各灯位的亮度可以不一致
[单选题]一个RB包含多少个RE()
A. 12
B. 36
C. 72
D. 84
[判断题]需要变更工作班成员时,应经工作负责人同意,在对新的作业人员进行安全交底手续后,方可进行工作。( )
A.正确
B.错误
[判断题]房地产开发项目的市场定位就是塑造本企业产品的鲜明个性或形象,使该项目在细分市场上占据有利的竞争位置。( )
A.正确
B.错误
[单项选择]我国社会主义初级阶段,全党全国工作的中心是
A. 维护世界和平
B. 经济建设
C. 坚持四项基本原则
D. 完成祖国统一大业
[判断题]突出矿井掘进巷道开口和采煤工作面准入生产前须经上一级管理主体验收,局部防突措施效果检验须经矿总工程师批准。()
A.正确
B.错误
[多选题]搬迁前,需要收集哪些现网信息
A.现网无线参数和配置信息
B.现网干扰信息
C.现网用户投诉信息
D.基站信息表,即现网工程参数表
E.网络拓扑信息、,即各网元间的逻辑连接关系
F.现网VIP用户分布信息.和VIP区域、道路信息
[多项选择]根据《公安机关办理行政案件程序规定》的规定,对下列案件管辖的说法正确的是()。
A. 甲、乙同为A县人,两人商定去B县打工,在B县汽车站,两人发生口角,甲将乙打伤,乙到当地派出所报案,甲趁乙报案时坐车返回了A县。B县公安局认为由A县公安局管辖更为适宜,便将案件移交A县公安局。A县公安局可以办理该案件
B. A县某公司甲、乙、丙、丁四人一起到B县出差,在宾馆房间内赌博,被人举报。B县公安局某派出所民警出警时,被出来买烟的甲、乙看见,两人打电话通知丙、丁后,先行逃回A县,丙、丁则被派出所出警人员抓获。甲、乙回到A县,听说丙、丁两人被抓后,便主动向A县公安局投案。A县公安局可以办理该案件
C. 甲在A县出差吸毒,到B县后被同事向B县公安局举报。B县公安局可以办理该案件
D. A县人甲到B县出差,遇到卖淫女乙,与其发生性关系并支付费用后,甲以想与乙处对象为由,将乙带回A县,在某旅馆内发生性关系时被公安机关查获。在公安机关询问时,乙说出与甲在B县的卖淫嫖娼行为,并供认其在B县多次卖淫,A县公安局将该案交由B县公安局办理。B县公安局可以办理该案件
[单选题]随着( )概念的提出,欧盟和日本已将微电网融入该框架体系中。
A.清洁电网
B.智能电网
C.未来电网
D.超级电网
[多选题]车站在用的灭火器包括( )。
A.干粉灭火器
B.1211灭火器
C.二氧化碳灭火器
D.泡沫灭火器
[单选题]依据《中国南方电网有限责任公司电力安全工作规程》(Q/CSG510001-2015)第25. 1. 2条规定:遇有( )级以上的大风时,禁止露天进行起重工作。
A.2
B.3
C.5
D.6
[单选题]当市政给水管网设有市政消火栓时,其平时运行工作压力不应小于( )MPa, 火灾时最不利点市政消火栓的供水压力从地面起算不应小于( )MPa
A.0.1,0.15
B.0.14,0.15
C.0.15,0.1
D.0.14,0.1
[判断题]公司的效益,员工的收入都是来自于客户的认可、信任、支持。
A.正确
B.错误
[单选题]原发性高血压最常见的死亡原因是
A.心律失常
B.尿毒症
C.脑血管意外
D.心力衰竭
E.高血压危象
[单选题]权利人、利害关系人认为不动产登记簿记载的事项是错误的,可以申请()。
A.注销登记
B.变更登记
C.转移登记
D.更正登记
[单选题]取得操作证的特种作业人员,必须定期进行复审,复审每()一次。
A.1年
B.4年
C.2年
D.3年
[多选题]基坑工程施工前应具备下列资料有( )。 ( )
A.基坑环境调查报告
B.基坑支护和降水设计图
C.基坑安全监测方案
D.基坑工程施工技术交底
[单项选择]—Look! He's running so fast!
—Hard to () his legs were once broken.
A. know
B. imagine
C. realize
D. find
[单选题]按锅炉燃用燃料的品种可分为( ).燃油锅炉.燃气锅炉三种。
A.燃煤锅炉;
B.燃无烟煤锅炉;
C.燃贫煤锅炉;
D.燃烟煤锅炉。
[单项选择]进入移动通信基站的低压电力电缆宜从地下引入机房,其长度不宜小于()(当变压器高压侧已采用电力电缆时,低压侧电力电缆长度不限)。电力电缆在进入机房交流屏处应加装避雷器,从屏内引出的零线不作重复接地。
A. 50m
B. 5m
C. 10m
D. 15m