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问题 单项选择题

对不符合我国环境保护规定要求的技术和设备引进应该( )。

A．禁止

B．限制

C．严格限制

D．不许可

答案

参考答案：A

解析： 《中华人民共和国环境保护法》第三十条规定，禁止引进不符合我国环境保护规定要求的技术和设备。

单项选择题

一个函数为void f(int，charch='a')，另一个函数为void f(int)，则它们

A．不能在同一程序中定义

B．可以在同一程序中定义并可重载

C．可以在同一程序中定义，但不可以重载

D．以上说法均不正确
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单项选择题

The metric assigned to each network depends on the type of protocol. Some simple protocol, like RIP, treats each network as equals. The（1）of passing through each network is the same; it is one（2）count. So if a packet passes through 10 network to reach the destination, the total cost is 10 hop counts. Other protocols, such as OSPF, allow the administrator to assign a cost for passing through a network based on the type of service required.A（3）through a network can have different costs (metrics). For example, if maximum（4）is the desired type of service, a satellite link has a lower metric than a fiber-optic line. On the other hand, if minimum（5）is the desired type of service, a fiber-optic line has a lower metric than a satellite line. OSPF allow each router to have several routing table based on the required type of service.

4（）

A．1atency

B．throughput

C．utilization

D．jitter
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