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【单选题】
空旷地形下，不调节音量旋钮，电台信号（）
A.
随着测向机与电台间距离减少而声音减少
B.
随着测向机与电台间距离减少而频率减少
C.
随着测向机与电台间距离减少而声音增大
D.
随着测向机与电台间距离减少而频率增大
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【单选题】He built a hut on a piece of rough land near a rock fall. In the wet season there was a plentiful stream, and over the years he encouraged the dry forest to surround him with a thick screen. The green...
A.
Because he and the forest were friends.
B.
Because he wanted to fell the trees to make more money.
C.
Because the dense leaves could protect him from the rain.
D.
Because the dense leaves could help him forget the world he hated.
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【单选题】He built a hut on a piece of rough land near a rock fall. In the wet season there was a plentiful stream, and over the years he encouraged the dry forest to surround him with a thick screen. The green...
A.
Because he and the forest were friends.
B.
Because he wanted to fell the trees to make more money.
C.
Because the dense leaves could protect him from the rain.
D.
Because the dense leaves could help him forget the world he hated.
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