问题
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Air pollution People and air pollution are often in the same places. This means that cities with large populations have the biggest problem of dirty air. Air pollution is caused by many different thi
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Why does the professor mention that drought is often blamed as the cause of the Dust Bowl?
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According to the context, which of the following is closest in meaning to "beside the poin
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The authors attitude towards the present male liberation movement is one of______.A.ambigu
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Semantics is the study of______.A.wordsB.sentencesC.meaningD.context
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The likely cause of the increased rates of HIV/AIDS is the lack of______.A.access to often