America was _____ by Columbus while the
题型:选择题
问题:
America was _____ by Columbus while the electric lamp was _____ by Edison.
A. invented; discovered
B. discovered; invented
C. found; invented
D. found; discovered
America was _____ by Columbus while the electric lamp was _____ by Edison.
A. invented; discovered
B. discovered; invented
C. found; invented
D. found; discovered