题目内容：
18.(2分)
Long after even the latest apple tree had finally broken into leaf, the mulberry.s（桑树）branches remained stubbornly ________.
参考答案：
选择题：18.
- 题目分类：山东师范大学-大学英语
- 题目类型：选择题
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(2分)
Long after even the latest apple tree had finally broken into leaf, the mulberry.s（桑树）branches remained stubbornly ________.