The exhibition ______ such endangered animals as the giant panda and the Siberian tiger and describes the work being done to protect them.

【正确答案】 A

【答案解析】 动词词义辨析。demonstrate“示范，演示”；exploit“剥削，利用，开发”；feature“由……主演，为……做广告”；detect“察觉，探测”。选项中，能与such endangered animals搭配的动词只能是demonstrates。故答案为A。