[单项选择]Conversation 2A) Two weeks ago. C) Three months ago.
B) Two months ago. D) Two days ago.

A. two
B. answer
C. write
D. win

The Economist recognises these talented people through its annual Innovation Awards, presented in six fields: bioscience, computing and communications, energy and environment, business-process innovation, consumer products and a flexible "no boundaries" category. The awards were presented at a ceremony in London on November 9th by John Micklethwait, The Economist’s editor-in-chief.
And the winners were:
Bioscience:
Marvin Caruthers, professor of chemistry and biochemistry at the University of Colorado at Boulder, for the development of automated DNA synthesis--the ability to "print out" arbitrary strands of genetic material.
(41) Computing and communications:
a creative individual who dreams up new ideas of computing and communi6ations and turn them into reality.
(42) Energy and environment:
a creative individual who dreams up new ideas of energy and environment and turn them into real