单项选择题
A. for the highest price offered B. only at fixed prices C. at a price less than their true value D. very cheaply
A. provide food for the giant flower B. water the rafflesia with their trunks C. carry rafflesia seeds from one place to another D. stomp out the awful smelling petals
A. their size B. their appearance C. the way they rest D. the kind of food they eat