多选题 For thousands of years, nomads, conquerors, traders, and pilgrims have ______ the region, contributing to its multicultural heritage and its ______ of artifacts.
【正确答案】 B、F
【答案解析】[解析] ● contributing to说明前后同义重复。
● circumvent绕开，traverse横穿/通过，canvass仔细检查；dearth供应不足，uniformity统一性，wealth大量。答案选BF。