【正确答案】：
1) A COMMON FEATURE PECULIAR TO ALL NATURAL LANGUAGES
2) HAVE MORE THAN ONE SENSE
3) THE PROBLEM OF POLYSEMY CAN BE DEALT WITH FROM TWO ANGLES: DIACHRONIC APPROACH AND SYNCHRONIC APPROACH.
【题目解析】：1)所有自然语言所特有的共同特征2)有多个意义3) 多义现象可以从历时和共时两个角度来处理。