名词解释题“自下而上”（bottom up）
名词解释题
“自下而上”（bottom up）
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Parametric cost estimating involvesA.using the WBS to do bottom up estimatesB.defining the perimeters of the life-cycleC.calculating the individual estimates of work packagesD.using a statistical model to estimate costsE.A and C
In which of the following cost estimating techniques are statistics models used:A . nonparametric cost estimatingB . parametric cost estimatingC . life cycle cost estimatingD . bottom-up estimatingE . All of the above.
A _____ estimate prepared from layouts, sketches and flowsheets, should be accurate within (-10, +25%).A . ParametricB . Definitive.C . BudgetD . Bottom up.E . Top down.
Statistical cost estimating techniques (based upon history), are called _____ estimates and are a _____ approach.A . Definitive, bottom up.B . Analogy, top down.C . Parametric, bottom up.D . Parametric, top down.E . Analogy, bottom up.
84 In which of the following cost estimating techniques are statistics models used:A. nonparametric cost estimatingB. parametric cost estimatingC. life cycle cost estimatingD. bottom-up estimatingE. All of the above.
50 Statistical cost estimating techniques (based upon history), are called _____ estimates and are a _____ approach.A. Definitive, bottom up.B. Analogy, top down.C. Parametric, bottom up.D. Parametric, top down.E. Analogy, bottom up.
59 A _____ estimate prepared from layouts, sketches and flowsheets, should be accurate within (-10, +25%).A. ParametricB. Definitive.C. BudgetD. Bottom up.E. Top down
Approaches towards reading and listening are __________. A.the bottom-up model and the top-down modelB.the bottom-up model and the interactive modelC.the bottom-up modelD.the top-down model and the interactive model
Header and Footer are strings of text that are placed at the(75) of each page of a document.A．left or rightB．up or downC．above or belowD．top or bottom
In cold, damp weather, the buildup of ice on airplane wings can pose significant aerodynamic problems. Which of the following effects would you expect?A.As ice builds up on the top of the wing, drag increases.B.As ice builds up on the top of the wing, lift increases.C.As ice builds up on bottom of the wing, lift decreases.D.All of the above
The police found the murder weapon at ( ). A、the bottom of the lakeB、the bottom of lakeC、bottom of the lakeD、bottom of a lake
The recording fathometer produces a graphic record of the ______．A.bottom contour only up to depths of 100 fathomsB.depth underneath the keel against a time baseC.contour of the bottom against a distance baseD.depth of water against a distance base
The hull is divided up into a number of watertight compartments by ______．A.inner bottom plating and longitudinalsB.decks and bulkheadsC.double bottom girdersD.topside and hopper tank sloping plating and longitudinals
（)is a technique for estimating the duration or cost of activity or a projecy using historical data orm a similar activity or project.A.Analogous estimatingB.Parametric estimatingC.Three-Point estmatingD.Bottom-Up estimating
锚已离底。（）A、Stand by for heaving up!B、Hoist the anchor ball .C、The anchor is clear of the bottom.D、The cable is clear .
关于Top-down与Bottom-up策略，下列说法不正确的是（）A、Top-down策略是对完整蛋白质直接进行分析鉴定的自上而下的策略B、Bottom-up策略以蛋白质酶解后的太大为分析对象的自下而上的研究策略C、Top-down策略不适宜用于对蛋白质翻译后修饰的表征D、Bottom-up策略不适宜用于对蛋白质翻译后修饰的表征
单选题Your vessel is damaged and listing to port. There is a short rolling period around the angle of list. The portside freeboard is reduced to 1 foot. There is no trim and the weather is calm. You should FIRST（）.Apress up a slack double bottom tank on the port sideBfill an empty centerline double bottom tankCpump out a slack marine portable tank located on the portside amidshipsDjettison the anchors and anchor cables
单选题The hull is divided up into a number of watertight compartments by（）.Ainner bottom plating and longitudinalsBdecks and bulkheadsCdouble bottom girdersDtopside and hopper tank sloping plating and longitudinals
单选题In an engine with a pot-shaped piston, some lubricating oil from the main bearing will pass along a （） in the crankshaft to the bottom end bearing andthen up a connection rod to the gudgeon pin.Atelescopic pipesBlarge boreCdrilled passageDtied rod
单选题If a teacher attempts to implement the bottom-up model to teach listening, he/she is likely to present _______.Anew words after playing the tapeBnew words before playing the tapeCbackground information after playing the tapeDbackground information before playing the tape
单选题If a teacher attempts to implement the bottom-up model to teach listening, he/she is likely to present______.Anew words after playing the tapeBnew words before playing the tapeCbackground information after playing the tapeDbackground information before playing the tape
单选题The recording fathometer produces a graphic record of the（）.Abottom contour only up to depths of 100 fathomsBdepth underneath the keel against a time baseCcontour of the bottom against a distance baseDdepth of water against a distance base
单选题Each crank is made up of two crank webs joined by a common（） to which the bottom endbearing is fitted.AthrowBcrankshaftCcrankpinDcrosshead