题目内容
(请给出正确答案)
提问人:网友wu03wu03
发布时间:2022-01-07
[主观题]
Learning public speech is a personal matter and does not benefit the society.
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A、consumer surplus.
B、diminishing total utility.
C、diminishing marginal utility.
D、the paradox of value.
A、Audience
B、Speaker
C、Pronunciation
D、Public speaking skills
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