The pair of words “lend”and “borrow”are（）.

The fact that different languages have different words for the same object is good proof that human language is （）.

A.arbitrary
B.non-arbitrary
C.logical
D.non-productive

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In terms of the place of articulation, the following sounds [t][d][s][z][n] share the feature of （）.

A.palatal
B.alveolar
C.bilabial
D.dental

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