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【多选题】
价值规律的内容包括( )。A.
价值量由社会必要劳动时间决定
B.
实行等价交换
C.
价格围绕价值波动
D.
价格围绕生产价格波动
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【单选题】听力原文：W: I'm disappointed that Susan didn't make it to the meeting. M: I saw her a couple of hours ago I guess something came up at the last minute. Q: What can be inferred about Susan? (14)
A.
She told the woman she couldn't come to the meeting.
B.
She thought the meeting would end soon.
C.
She had planned to attend the meeting.
D.
She looked for the woman after the meeting.
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