Intonation cannot affect the intention of the speaker's message.
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在公共场合中, 不可以忘乎所以、为所欲为,不可以高谈阔论、( )。
A. 窃窃私语
B. 小声说话
C. 轻声说话
D. 大声喧哗
_________ Period Hypothesis states that if humans do not learn a foreign language before a certain age, it becomes impossible to learn the foreign language like a native speaker.
_______ pairs are pairs of words which have only one sound different from each other.
导游着装应注重服装色彩的搭配。一般来说,( )是服饰搭配最常见的三种颜色,它们是最容易与其他颜色的服装搭配并产生良好的视觉效果。
A. 黑、黄、白
B. 黑、灰、白
C. 黑、蓝、白
D. 黑、青、白