题目内容
(请给出正确答案)
提问人:网友mikeymouse1
发布时间:2022-01-07
[主观题]
To get an idea of the main debates on a research topic.
简答题官方参考答案
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查看官方参考答案
A、They are used to express only thoughts and feelings.
B、They are signs.
C、They are simply sounds.
D、They can only be written.
E、They can only be read.
F、They can make trade.
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