女，25岁，工作时突然昏到，不省人事，口吐涎沫，喉有痰声，面色晦暗，舌苔白腻，脉滑，

男性，22岁，在一次体检中发现HBsAg阳性，当时无自觉症状、体征，肝功能正常，次年因发热数日，无力，恶心，巩膜黄染而住院，ALT 230U/L，血清总胆红素＞17．1μmol/L，甲肝抗体IgM阳性，乙肝核心抗体阳性，哪种诊断可能最大

A．非甲非乙型肝炎
B．慢性乙型肝炎，迁延型
C．慢性乙型肝炎，活动型
D．慢性乙型肝炎合并甲肝
E．甲型黄疸型肝炎，HBsAg携带者

The purpose of the requirements definition phase is to produce a clear, complete, consistent, and testable （） of the technical requirements for the software product. During the requirements definition phase, the requirements definition team uses an iterative process to expand a broad statement of the system requirements into a complete and detailed specification of each function that the software must perform and each （） that it must meet. The starting point is usually a set of high-level requirements from the （） that describe the project or problem. In either case, the requirements definition team formulates an overall concept for the system and then defines （） showing how the system will be operated, publishes the system and operations concept document, and conducts a system concept review(SCR). Following the SCR, the team derives （） requirements for the system from the high level requirements and the system and operations concept. Using structured or object-oriented analysis, the team specifies the software functions and algorithms needed to satisfy each detailed requirement.

In either case, the requirements definition team formulates an overall concept for the system and then defines （） showing how the system will be operated.

A．rules

B．principles

C．scenarios

D．scenes

城市群的竞争力很大程度上取决于群内城市间的产业分工与合作。图3示意城市 群内部城市间的产业链分工体系。完成以下1—2题。

1．城市群中，中心城市的优势产业处于产业链中的位置是 [     ]

A．①⑤

B．②④

C．③④

D．①③ 

2．产业分工处于产业链上③位置的城市，其竞争优势主要体现在 [     ]

A．产品需求量大

B．交通便利

C．劳动力充足

D．土地租金低

驾驶人在驾驶证有效期满前多长时间申请换证？

A．30日内

B．60日内

C．90日内

D．6个月内

设显示器的分辨率为1024×768，显示存储器容量为2MB，则表示每个像素的二进制位数最合适为( )。

A．2bit

B．8bit

C．16bit

D．24bbit