{{B}}Orbital Space Plane{{/B}} While scientists are searching the cause of the Columbia disaster, NASA is moving ahead with plans to develop a new craft that would replace shuttles on space station missions by 2012 and respond quickly to space station emergencies. The space agency released the first set of mission needs and requirements several days ago for the orbital space plane, which would be designed to transport a crew of four to and from the International Space Station. Although it includes few specifics, the plan stipulates the orbiter will be safer, cheaper and require less preparation time than the shuttle. It would be able to transport four crew members by 2012 - though it would be available for rescue missions by 2010. NASA says the craft should A. a space hospital. B. a medical research center. C. a medicine-transporting vehicle. D. a space ambulance. [单选题]在EI32-JD型计算机联锁系统维修机界面中选择“联锁采集/驱动信息表”,可详细察看联锁系统信息采集和驱动的信息表,其中采集信息表从采集( )开始,和系统实际配线相对应。
A.0 B.1 C.2 D.3 [单项选择]目标市场的策略中,( )降低了营销成本,节省了促销费用,但长期使用此策略,必然导致一部分差异性需求得不到满足。
A. 全面性营销策略 B. 差异性营销策略 C. 集中性营销策略 D. 无差异营销策略 [判断题]( )施工地段放行列车限速vmax≤45km/h时,起道(含垫砟)顺坡率、冻害垫板平台两端的顺坡
率均不小于200倍。( )(1.0分) A.正确 B.错误 [单项选择]肩关节脱位,呈阳性表现的体征是()。
A. Dugas征 B. Mills征 C. Lasegue征 D. McMurray征 E. Thoamas征 [单选题]单选题
油脂蛋糕的重量、大小、形状等,都影响着油脂蛋糕在烘烤时的温度、时间,所以要根据制品要求,正确选择烘烤温度及时间。( ) A.对 B.错 [多选题](多选题)截止阀的使用特点是( )。
A.密封性能好 B.流动阻力大 C.适用于流体流量调节 D.适用于切断物料 [简答题]什么叫“吴门四家”?
[单项选择]有关触发活动的描述,不正确的是()
A. 触发活动是指动作电位后产生的除极活动,也称为后除极 B. 若后除极的振幅增高并抵达阈值,便可引起反复激动 C. 触发活动多发生于动作电位的2相 D. 触发活动亦可导致持续性快速性心律失常 E. 可见于局部出现儿茶酚胺浓度增高、心肌缺血再灌注、低血钾、高血钙及洋地黄中毒时 [单项选择]对协议散客的预定和入住,前台操作不符合标准的是哪项()?
A. 协议散客必须通过传真预订,传真须有协议公司公章有或使用有公司名称抬头的信纸 B. 前台需依据协议散客的预定传真填写《散客预定单》,最终随退房封包交财务保存 C. 若协议散客上门入住无法提供订房传真,前台可保存客人公司名片原件 D. 若协议散客上门入住无法提供订房传真,前台可请前厅经理在客人《临时住宿登记单》上签字确认(店长/运营经理) [判断题]行政手段是我国证券市场监管的主要手段,其约束力强。 ( )
A.正确 B.错误 我来回答: 提交
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