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问题 单项选择题 A1/A2型题

关于急性白血病细胞浸润的表现，错误的是（）。

A.骨骼和关节疼痛

B.中枢神经系统白血病

C.肝脾轻至中度肿大

D.淋巴结肿大多数无压痛

E.皮肤、牙龈、睾丸等不会被浸润

答案

参考答案：E

解析：急性白血病细胞浸润可导致肝脾、淋巴结肿大、也可侵犯中枢神经系统、皮肤、牙龈、睾丸等，引起相应的临床表现。

单项选择题 A1/A2型题

健康教育的理想目标是（）。

A.人们知识的提高

B.人们态度的转变

C.人们建立起健康的信念

D.人们行为的改善

E.人们价值观念的变化
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单项选择题

Typically, these are concern with the establishment of (66) the network and with the control of the flow of messages across this channel. The provision of such facilities is only part of the network requirements, however, since in many applications the communicating computers may be of different types. This means that they may use different programming languages and, more importantly, different forms of (67) interface between user(application)program, normally referred to, as application processes or APs, and the underlying communication services may be (68) For example, one computer may be a small single -user computer, while another may be a large (69) system. In the earlier days of computer communication, these issues meantthat only closed communities of computers ( that is, from the same manufacturer) could communicate with each other in a meaningful way. IBM’s Systems Network.
Architecture (SNA) and DEC’s Digital Network Architecture (DNA) are just two examples of Communication software packages produced by manufacturers to allow their systems to be int erconnected together. These proprietary packages, however, of which there am still many inexistence, do not address the problem of universal interconnect ability, or open systems interconnection. In an attempt to alleviate this problem, (70) , in the late 1970s, formulated a reference model to provide a common basis ( or the coordination of standards developments and to allow existing and evolving standards activities to beplaced into perspective with one another.

A．same

B．similar

C．different

D．dependent
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