Answer:
it says "Why does the Han society have such a complicated system of appellation for relatives? What is the historical root behind it"
Explanation:
Ok. What is the question?
After items, D.
A colon (:) start an enumeration, which in your case has the items
a microscope,
a test tube,
and a thermometer.
you place the : before the first of the items, so after "items".
True, if there may be a possibility that you would have to speak in a different language. And the people who would speak a foreign language would somewhat trust the leader since he/she knows how to speak the language. Hope this helps.
