题目内容
The serious haze(雾霾)caused many problems. Which of the following is correct for the underlined word in the sentence?
A./siri?s/ B./si:ri?s/ C./seri?s/ D./'sr?ri?s/
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题目内容
The serious haze(雾霾)caused many problems. Which of the following is correct for the underlined word in the sentence?
A./siri?s/ B./si:ri?s/ C./seri?s/ D./'sr?ri?s/