【单选题】Where Have All the Bees Gone? ?? Scientists who study insectshave a real mystery on their hands. All across the country, honeybees areleaving their hives and never returning. Researchers call this phe...
A.
Honeybees are flying all across the country
B.
25-40 percent of the honeybees in the US have died
C.
Honeybees are leaving their hives and do not return