A party who unintentionally uses the trademark of another is not liable for trademark infringement.
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Patent protection only begins on the date that a patent is granted.
A. 对
B. 错
In most countries, copyright protection is automatic—registration is not required.
A. 对
B. 错
Anyone who writes a book has automatic copyright protection in every country in the world.
A. 对
B. 错
TCP可靠传输的实现依赖于（）。
A. 流量控制
B. 分段和重组
C. 确认机制
D. 重传机制
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