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问题 填空题

国防科技大学研制出的“天河一号”超级计算机的峰值运算速度为每秒12060000亿次．用科学记数法表示该运算速度为每秒______亿次．

答案

12060000=1.206×107．

故答案为：1.206×107．

多项选择题

制定工程咨询项目质量计划的工作内容包括( )。

A．明确项目咨询成果的质量目标和质量标准

B．明确影响质量的控制节点，制定检查、控制的措施

C．编制项目质量报告，报上级质检部门和项目经理

D．层层分解质量目标

E．发现重大质量问题，及时组织解决并向项目团队负责人报告
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单项选择题

Networks can be interconnected by different devices. In the physical layer networks can be connected by (31) or hubs, which just move the bits from one network to an identical network. One layer up we find bridges and switches which operate at data link layer. They can accept (32) , examine the MAC address and forward the frames to a different network while doing minor protocol translation in the process. In network layer, we have routers that can connect two networks. If two networks have (33) network layer, the muter may be able to translate between the packer formats. In the transport layer we find transport gateway, which can interface between two transport connections. Finally, in the application layer, application gateways translate message (34) . As an example, gateways between Internet e-mail and X.400 e-mail must (35) the e-mail message and change various header fields.

（33）是（）

A.special

B.dependent

C.similar

D.dissimilar
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