Although they plant trees in this area every year, the tops of hills are still ______. A．blank B．hol...
2023-01-25 17:45:38 166次 2010年焦作市高二选修模块（8）水平测试 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
Although they plant trees in this area
every year, the tops of hills are still ______.
|
A．blank
|
B．hollow
|
C．vacant
|
D．bare
|
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