Finally, the future directions were given, which aimed to benefit the future research and applications of opportunistic networks.

通过比较对各种协议的特点进行分析阐述，最后给出未来研究的方向。

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Hit by a series of scandals and highly-publicized attacks by opportunistic short-sellers like Citron Research and Muddy Waters, investor sentiment has weakened and doubt has become the default position.

FORBES: Short-Seller Attacks Highlight Chinese Companies Social Media Shortcomings