1. By moving the radar beam around slowly in circles, we can _____ the surroundings.
A. explore B. expose C. exploit D. addle
<addle>
addle 混亂的、糊涂的
addle egg 變壞了的蛋
</addle>
<explore>
explore 開發(fā)、研究、探索
</explore>
<expose>
expose 暴露
</expose>
<exploit>
exploit 開發(fā)、剝削
explode 爆炸
lodestar 北極星
the exploited 被剝削者
</exploit>
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