【正确答案】 B

【答案解析】extinction：灭绝，绝迹。与die out(绝种)意思相近。The giant panda is in danger of dying out. 大熊猫面临绝种的危险。dry up：擦干。Let me wash up these plates and you dry them up. 我来洗盘子，你来把它们擦干。export：出口。Many bicycles are exported each year. 每年都有许多自行车出口到国外。transplant：移植，迁移。Many vegetables were transplanted to the north, growing in the greenhouse. 许多种蔬菜移植到了北方，在温室里生长。