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【单选题】
Ravi, like many project (1) , had studied the waterfall model of software development as the primary software life-cycle (2) . He has all set to use it for an upcoming project, his first assignment. However, Ravi found that the waterfall model could not be used because the customer wanted the software delivered in stages, something that implied that the system had to be delivered and built in (3) and not as (4) . The situation in many other projects is not very different. The real world rarely presents a problem in which a standard process, or the process used in a previous project, is the best choice. To be the most situation, an existing process must be (5) to the new problem. A development process, even after tailoring, generally cannot handle change requests. To accommodate change requests without losing control of the project, you must supplement the development process with a requirement change management process. 空白(1)处()
A.
customers
B.
managers
C.
users
D.
administrators
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【单选题】某女士,28岁。生育史:0-0-2-0,妊娠35周,胎膜早破入院。检查:先露未入盆,护理措施中错误的是
A.
嘱绝对卧床休息
B.
取头高足低位
C.
观察阴道流血情况
D.
指导孕妇自测胎动
E.
禁止清洁灌肠
【单选题】某女,28岁,生育史:2-0-1-0,妊娠20周,无胎动,下腹膨隆不明显。检查:宫颈口闭,无血染,子宫大小与妊娠月份不相符、B超示胎心消失。入院后最重要做下列哪一项检验
A.
心肌酶谱
B.
血肝功能
C.
凝血功能检查
D.
血DNA测定
E.
血红蛋白
【单选题】惠山泥人传统工艺极为复杂,彩绘技艺在整个泥人的工艺制作中占有较高的比重,因而有( )之说。
A.
“六分塑三分彩”
B.
“四分塑六分彩”
C.
“三分塑七分彩”
D.
“七分塑三分彩”
【单选题】已知某一元弱酸的浓度为0.01mol/L,pH=4.55,则其解离常数Ka为( )。
A.
5.8×10-2
B.
9.8×10-3
C.
8.6×10-7
D.
7.97×10-8
【单选题】现欲比较FeO 、Fe 2 O 3 、Fe 3 O 4 三种铁的氧化物中铁元素质量分数的大小,下列方法中最简单的是 [     ]
A.
分别计算、比较三种物质中铁元素的质量分数
B.
分别计算、比较三种物质中铁元素的质量
C.
分别计算、比较三种物质中氧元素的质量
D.
分别计算、比较当氧原子个数相同时,铁原子的质量之和
【判断题】多线螺纹每旋转一周,则在轴线方向上移动一个螺距
A.
正确
B.
错误
【单选题】事件A和B相互独立,则( )
A.
事件A和B互斥
B.
事件A和B互为对立事件
C.
P(AB)=P(A)P(B)
D.
A∩B是空集
【单选题】在铁的三种氧化物 FeO、Fe 2 O 3 、Fe 3 O 4 中,铁元素的质量分数由大到小的排列顺序是(  )
A.
FeO>Fe 2 O 3 >Fe 3 O 4
B.
Fe 2 O 3 >Fe 3 O 4 >FeO
C.
Fe 3 O 4 >Fe 2 O 3 >FeO
D.
FeO>Fe 3 O 4 >Fe 2 O 3
【单选题】已知某一元弱酸的 ,则下列说法不正确的是( )
A.
其共轭碱的
B.
其共轭碱的pKb=4.75
C.
其共轭酸的pKa=4.75
D.
其共轭碱的pKb=9.25
【单选题】惠山泥人传统工艺极为复杂,作为彩塑,彩绘技艺在整个泥人的工艺制作中占有较高的比重,因而有“——————”之说。
A.
“三分塑七分彩”
B.
“五分塑五分彩”
C.
“七分塑三分彩”
D.
“重塑轻彩”
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