[单选题]V2 is defined as the _______ .
A.decision speed for takeoff
B.safe takeoff speed
C.minimum takeoff speed
D.minimum control speed after airborne

[单项选择]

Information systems design is defined as those tasks that focus on the specification of a detailed computer-based solution. Typically, there are four systems design tasks for in-house development. 1)The first task is to specify (1), which defines the technologies to be used by one, more, or all information systems in terms of their data, processes, interfaces, and network components. This task is accomplished by analyzing the data models and process models that are initially created during requirements analysis. 2)The next systems design task is to develop the (2). The purpose of this task is to prepare technical design specifications for a database that will be adaptable to future requirements and expansion. 3)Once the database prototype has been built, the systems designer can work closely with system users to develop input, output and dialogue specifications. The (3) must be specified to ensure that the outputs are not lost, misrouted, misused, or incomplete. 4)The fourth desi
A. an application architecture
B. adistributed system
C. asystem scope
D. a system physical model

[单项选择]（2010）一定量的理想气体，从一平衡态p1、V1、T1变化到另一平衡态p2、V2、T2，若V2>V1，但T2=T1，无论气体经历的过程为（）。
A. 气体对外做的功一定为正值
B. 气体对外做的功一定为负值
C. 气体的内能一定增加
D. 气体的内能保持不变

[单选题]如未使用飞行指引起飞,起飞后分别于速度 V2 之前;V2 到 V2+20 之间;V2+20 以上出现发动机失效,机组应调整俯仰姿态以保持什么速度爬升?
A.增速至不小于 V2 速度;保持失效时的速度;减速至 V2+20 海里/小时
B.增速至不小于 V2 速度;减速至 V2 速度;保持失效时的速度
C.保持失效时的速度;不小于 V2 速度;不小于 V2+20 海里/小时
D.增速至不小于 V2;保持 V2 到 V2+20 海里/小时;保持 V2+20 海里/小时

[单项选择]Which of the following four drivers can be defined as an illegal driver

[单项选择]

Oceanography has been defined as "The application of all sciences to the study of the sea".
Before the nineteenth century, scientists with an interest in the sea were few and far between. Certainly Newton considered some theoretical aspects of it in his writings, but he was reluctant(不愿意的) to go to sea to farther his work.
For most people the sea was remote, and with the exception of early intercontinental travelers or others who earned a living from the sea, there was little reason to ask many questions about it, let alone to ask what lay beneath the surface. The first time that the question "What is at the bottom of the oceans" had to be answered with any commercial consequence was when the laying of a telegraph cable from Europe to America was proposed. The engineers had to know the depth profile(起伏形状) of the route to estimate the length of cable that had to be manufactured.
It was to Maury of the U. S. Navy that the Atlantic Telegra
A. doubled
B. gave proof to
C. challenged
D. agreed to

[单项选择]The "international date line" can be best defined (给......下定义) as


A. the beginning of a new traveling day
B. the border(边界) of two countries
C. the point where a new day begins
D. the place where an agreement can be exchanged(交换)

[单项选择]下面的函数调用语句中func函数的实参个数是
func(t2(v1，v2)，(v3，v4，v5)，(v6，max(v7，v8)))；
A. 3
B. 4
C. 5
D. 8

[判断题]电路中两点的电位分别是V1=10V,V2=-5V,这1点对2点的电压是15V。
A.正确
B.错误

[单选题]假设起飞分析表中的V1/VR/V2速度为38-39-45，这表示V1/VR/V2的速度分别为：
A.38节/39节/45节
B.38节/39节/145节
C.138节/39节/45节
D.138节/139节/145节