The amendments (of) the laws on patent, trademark and copyright (have enhanced) protection of (intellectual property) rights and

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问题 The amendments (of) the laws on patent, trademark and copyright (have enhanced) protection of (intellectual property) rights and (made them conform) to WTO rules.

选项 A、of
B、have enhanced
C、intellectual property
D、made them conform

答案A

解析 改为to  amendment后面的介词应当用to表示“对……的修改”。
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