Wireless waste from cell phones, pocket PCs, and music players ______ special problems because they have toxic chemicals in batt

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问题 Wireless waste from cell phones, pocket PCs, and music players ______ special problems because they have toxic chemicals in batteries and other components.

选项 A、pose
B、commit
C、transport
D、expose

答案A

解析 pose造成,形成,提出问题。commit让犯错误,干坏事。transport传送,运输。expose揭露,暴露。
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