A software requirements specification is that () .
A. a rough list of things that the proposed software ought to do
B. a precise list of things that the proposed software ought to do
C. a formal list of things that the proposed software must do
D. an estimate of the resouroes (time, money, personnel, etc) which will be required to construct the proposed software
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The basic units of a computer sysiem are as follows: () .
A. CPU, memory and disk
B. CPU, input and output
CPU, memory and ALU
D. CPU, memory and I/O system
建设项目监理工作中，各有关部门之间、同一层次的各有关人员之伺的相互信息交流属于__________。
A. 自上而下流动的信息
B. 自下而上流动的信息
C. 横向流动的信息
D. 建设项目内部与外部环境之间流动的信息
关于子宫肌瘤，下列描述哪项不对：()
A. 是子宫最常见的良性肿瘤
B. T1WI上，肌瘤为中等信号
C. 子宫单发或多发肿块
D. 瘤内可有出血、坏死、囊变、钙化
E. T2WI上，肌瘤实体部分为较高信号
以下哪一种检查方法不能准确判断膀胱癌的壁外侵犯：()
A. 膀胱逆行造影
B. CT增强检查
C. MRI检查
D. 经直肠腔内超声
E. 经腹部超声
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