Final answer:
The pronunciation of the voiceless 'th' and voiced 'th' sounds may vary in different words, potentially leading to the word 'thing' being pronounced as 'ting' and 'them' as 'dem' in some dialects or accents.
Step-by-step explanation:
The question seems to involve the pronunciation of the voiceless 'th' sound and the voiced 'th' sound. The word 'thing' may be pronounced as 'ting' with the voiceless 'th' sound, and the word 'them' may be pronounced as 'dem' without the 'th' sound. The pronunciation differences could indicate the influence of certain dialects or accents. It's important to note that these pronunciations may not be standard in all English-speaking regions or contexts.