问题
填空题
判断一个通信系统的性能优劣，（）和（）是最基本的也是最主要的质量指标。
答案
参考答案：可靠性；有效性
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判断一个通信系统的性能优劣，（）和（）是最基本的也是最主要的质量指标。
参考答案：可靠性；有效性
| 情景交际 | |
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