A.Caffeine has no effect on the rat brain. |
B. Bee population has been increasing. |
C.The nectar of lemon plants contains caffeine. |
D.Bees dislike nectar from sweetened flowers. |
A.annoyed | B.angry | C.nervous | D.excited |
A.improved memory—caffeine nectar—better pollination |
B.caffeine nectar—improved memory—better pollination |
C.improved memory—better pollination—caffeine nectar |
D.caffeine nectar—better pollination—improved memory |
A.Science | B.Education |
C.Culture | D.Sports |