| Long, long ago people thought the sun
went around the earth. In some countries, people said that sun was a god (神).
They thought that he drove across the sky each day on a golden horse. But now we know the earth goes around the sun. Today men know how far it is for the earth to go around the sun. They tell us that the earth travels over 1,000 miles a minute on its way around the sun. The sun is really a star. It is much bigger than the earth and it is very hot. Some people have been to the moon, but we know that no one can ever get to the sun. It is too hot for people to live anywhere near it. The sun is 300,000 times heavier than the earth and more than a million (百万) times larger. |
| This line of inquiry did not begin
until earlier this month--more than three months after the accident--because
there were "too many emotions, too many egos," said retired Adm. Harold Gehman,
chairman of the Columbia Accident Investigation Board. Testifying before the Senate Commerce Committee, Gehman said this part of his inquiry Was in its earliest stages, starting just 10 days ago. But Gehman said he already has concluded it is "inconceivable" that NASA would have been unable or unwilling to attempt a rescue for astronaut, s in orbit if senior shuttle managers and administrators had known there was fatal damage to Columbia’s left wing. Gehman told reporters after the hearing that answers to these important questions could have enormous impact, since they could place in a different context NASA’s decisions against more aggress [单选题] SF6配电装置发生防爆膜破裂时，应停电处理，并用( )擦拭干净。
A. 汽油或丙酮 B. 煤油或丙酮 C. 汽油或酒精 D. 汽油或香蕉水 [简答题]732.关于挥发性液体试样的称量，可釆用下列方法进行称量.1）直接称量一试样被吸入安甑瓶中
[单项选择]因注册验资开立的临时存款帐户，其账户名称为（），其预留银行签章中公章或财务专用章的名称应是（）。
A. 《企业核准通知书》或政府有关部门批文中注明的名称；《企业核准通知书》或政府有关部门批文中注明的名称 B. 《企业核准通知书》或政府有关部门批文中注明的名称；存款人与银行在银行结算账户管理协议中约定的出资人名称 C. 存款人与银行在银行结算账户管理协议中约定的出资人名称；存款人与银行在银行结算账户管理协议中约定的出资人名称 D. 《企业核准通知书》或政府有关部门批文中注明的名称；个别办理出资人的名称 [单选题]煤矿井下照明、信号、电话和手持式电气设备的供电额定电压，不得超过( )V。
A.A．220 # B.B．127 # C.C．36 [单选题]5月29日晚，我国在（）航天发射场准时点火发射天舟二号货运飞船。这是空间站货物运输系统的第一次应用性飞行。
A.甘肃酒泉卫星发射中心 B.四川西昌卫星发射中心 C.山西太原卫星发射中心 D.海南文昌卫星发射中心 [单项选择]加工曲面时，三坐标同时联动的加工方法称（）加工。
A. 2维 B. 2.5维 C. 3维 D. 4维 [单选题]门机起升机构组成部分由驱动装置、制动装置、传动装置和（）
A.限位装置 B.卷绕系统 C.正反转装置 [单选题]某基金宣传材料有如下内容:“基金单位净值达到 1.110 元后开放申购。基金公司销售人员向投资者承诺基金净值归一,以便投资者在同一起跑线上享受投资收益,欲购从速。”,以下表述正确的是( )。
A.销售人员的承诺不属于业绩承诺,不构成违规承诺 B.在不损害投资者权益的前提下,可以使用净值归一作为基金推介方式 C.不可以使用“欲购从速”强调集中营销的表述 D.净值归一符合保护投资者原则 [判断题]客车轴承外圈组件与轴箱组装时，外圈外径和轴箱内径表面涂变压器油。
A.正确 B.错误 [判断题]27米的9层住宅是二类高层民用建筑。
A.正确 B.错误 [单选题]苦杏仁苷属于
A.醇苷 B.硫苷 C.氮苷 D.碳苷 E.氰苷 [判断题]根据《安全生产事故隐盅排查治理暂行规定》安全监管监察部门收到生产经营单位恢复生产的申请报告后进行现场审查，发现不具备安全生产条件的，依法提请县级以上人民政府按照国务院规定的权限予以关闭。
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