在结构化方法中，软件功能分解属于下列软件开发中的阶段是
A．详细设计
B．需求分析
C．总体设计
D．编程调试
参考答案：C
.Because of the heavy sandstorm, we had to put off the visit until tomorrow to the exhibition of painting _____in the nearby city.
A．to hold
B．held
C．holding
D．being held
60岁肺气肿及肺源性心脏病患者，下列说法不正确的是（）
A.胸片上可见肺动脉段突出
B.肝大及下肢水肿
C.肺动脉瓣区第第二心音亢进
D.上中腹部有波动感
E.在胸片上可见Kerley-B线
