Question 1-6 Complete the summary using the list of words， A-G， below. Write the correct letter， A-G， in boxes 1-6 on your answer sheet.NB You may use any letter more than once.
A wide variety of techniques， ranging from 1 _________ to 3-D imaging， have improved the ability of scientists to examine valuable historical remains， without causing destruction. These advances in technology have had a beneficial effect on the practice of archaeology and physical anthropology， particularly in the field of 2 __________. New techniques allow scientists to determine more 3 ________， and therefore more accurately， how a person died and where， for example， a 4 ________ originated. Additionally， the process of 5 ________ remains can be simulated. The 6 _________ of the archaeologist as well as the data available have been expanded as a result.The list of words are listed as following:
A dating B origin C tools D post-mortem analysis E bones F computerized G precise
