69. WHERE WERE THE PARACHUTISTS WHEN, ACCORDING TO THE PASSAGE, THEY P...

69 . - 2 DE THI THU DAI HOC CHUYEN THAI BINH CO DAP AN
Tiếng Anh 2 DE THI THU DAI HOC CHUYEN THAI BINH CO DAP AN
69

. Where were the parachutists when, according to the passage, they produced large amount of the two

hormones?

A. On an airplane C. On the ground B. In the airD. At sea