If you want to learn some terms related to your field, you will find this book might be (help) ______.

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问题 If you want to learn some terms related to your field, you will find this book might be (help) ______.

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答案helpful

解析 此处要填的词用来修饰名词book,且位于be动词后,所以要用形容词性helpful。
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