通货膨胀心理

平面上有四点，连接其中的两点的一切直线中的任何两条直线不重合、不平行、不垂直，从每一点出发，向其他三点作成的一切直线作垂线，则这些垂线的交点个数最多为（　　）

A．66

B．60

C．52

D．44

患者，女性，22岁，诊断为双上肺继发性肺结核，痰涂片阳性。予四联抗结核药物治疗，其联合用药的目的是

A．缩短疗程
B．减轻药物的副作用
C．迅速杀灭A群结核菌
D．增加药物的协同作用，减少耐药菌产生
E．防止病变扩散

For nearly ten years, the Unified Modeling Language (UML) has been the industry standard for visualizing, specifying, constructing, and documenting the (26) of a software-intensive system. As the (27) standard modeling language, the UML facilitates communication and reduces confusion among project (28) The recent standardization of UML 2.0 has further extended the language’s scope and viability.Its inherent expressiveness allows users to
(29) everything from enterprise information systems and distributed Web-based applications to real-time embedded systems. The UML is not limited to modeling software. In fact, it is expressive enough to model (30) systems, such as workflow in the legal system, the structure and behavior of a patient healthcare system, software engineering in aircraft combat systems, and the design of hardware. To understand the UML, you need to form a conceptual model of the language, and this requires learning three major elements: the UML’s basic building blocks, the rules that dictate how those building blocks may be put together, and some common mechanisms that apply throughout the UML.

A．classes

B．components

C．sequences

D．artifacts

单纯疱疹病毒性脑炎的前驱期可以出现（）

A.发热、全身不适

B.头痛

C.肌痛

D.嗜睡

E.腹痛和腹泻

下列销售商品业务中，可以确认销售商品收入实现的有( )。

A．销售产品给甲公司并已向银行办妥托收手续，但甲公司资金周转发生困难

B．采用分期收款销售商品方式销售商品

C．销售商品给乙公司并已向银行办妥托收手续，但货款尚未收到

D．销售试制产品并向客户承诺，如果卖出的产品在试用期内不满意，无条件退货

E．销售产品并向客户承诺，如果卖出的产品在半年内出现质量问题，无条件退货