题目内容

社会技术资源有()和 ()。

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绿色工业品的是( )。

人口和劳动力是社会经济资源。

A. 对
B. 错

可持续发展是必须坚持走的道路。

A. 对
B. 错

Short conversation1[音频]

A. He is upset that his sister is missing.
B. He is tried of his sister's explanations.
C. He is dissatisfied with his sister's housework.
D. He's very unhappy at his sister's act.

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