题目内容：
3、（2分） The pests that have different colors from plants usually appear at night because ______.
A A)
B B)
C C)
D D)
参考答案：
选择题：3、（2分）
- 题目分类：河南城建-英语2
- 题目类型：选择题
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The pests that have different colors from plants usually appear at night because ______.
A A)
B B)
C C)
D D)