【华慧考博】考博英语每日一练(7.15)考博加油!
1. It was an extraordinary productive year for the genetic engineers to ______ the secrets of human DNA.
A. undo
B. unravel
C. unpack
D. unscrew
2. It ______ to me that a trip round the world might be the best solution to his misery.
A. occurred
B. recruited
C. recurred
D. referred
【考博英语英译汉】
It was argued at the end of the 19th century that humans do not cry because they are sad but they become sad when the tears begin to flow.