【单选题】[1705第2题]:某系统由下图所示的冗余部件构成。若每个部件的千小时可靠度都为R,则该系统的千小时可靠度为()
B.
(1-(1-R)^3)(1-(1-R)^2)
D.
(1-(1-R)^3)+(1-(1-R)^2)
【单选题】《万岁通天帖》或称《王氏一门书翰》,唐称《宝章集》,宋 岳珂《宝真斋法书赞》称作《万岁通天帖》,刻于( )。
【单选题】钱女士,50岁,不规则阴道流血、流液半年。妇科检查:宫颈菜花样组织,子宫大小正常,活动差,怀疑子宫颈癌,为进一步确诊,需做哪项检查
【单选题】标志人类学与田野工作的完美结合以及现代人类学的产生是下列哪本著作:
【单选题】Temperature Three scales of temperature, each of which permits a precise measurement, are in concurrent use: the Fahrenheit, Celsius, and Kelvin scales. These three different temperature scales were e...
A.
It was developed by an astronomer from Sweden.
B.
It came into use in the eighteenth century.
C.
One hundred degrees separated the freezing and boiling temperatures of water on it.
D.
On it, 0°indicated the temperature at which water freezes.
【单选题】This is a very popular book in the U.S., but it died have a history of being banned in Europe, and it was still _ in many countries.
【单选题】The London EyeThe London Eye is a cantilevered(带悬臂的) observation wheel on the South Bank of the River Thames in London. It is Europe's tallest cantilevered observation wheel, and is the most popular p...
【单选题】2010年7月16日,《山西省残疾人保障条例》由省十一届人大常委会第十七次会议通过。《条例》以“理解、尊重、关心、帮助”残疾人为核心理念。《条例》的通过 [ ]
【简答题】江苏省经济发展水平南北差异较大,目前相对发达的苏南将部分产业向苏中、苏北转移。结合“苏南某市与苏北某市投资要素对比表”,完成题。 投资地区 招商门槛 土地价格 平均工资水平 环保门槛 苏南某市 5 000万元 100万元左右 3 000元左右 要求高 苏北某市 1 000万元 20万元左右 1 000元左右 要求较低 小题1:苏南地区开始“腾笼换鸟”,被“逼走”的产业所具有的特点是 ...