麦角菌的学名是_____________。 A: Claviceps purpurea B: Ganoderma lucidum C: Cordyceps sinensis D: Poria cocos

which flowers' life cycle and annual cycle is identical A: garden balsam B: Dianthus barbatus C: Digitalis purpurea D: pansy

which flowers have the life cycle of 1 year, 2 years or several years. A: African marigold B: Digitalis purpurea C: tree peony D: snapdragon

香港的区花叫什么？What flower is the district flower of Hong Kong? A: 紫荆Cercis chinensis B: 洋紫荆Bauhinia variegata C: 紫蝉Allamanda violacea D: 羊蹄甲Bauhinia purpurea