The Mekong River, which________ several countries in Southeast Asia, ______to be playing a significant role in the region.A.links; is consideredB.has linked; considersC.is linked; is consideredD.links; considers
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A解析动词辨析。Link sth联系sth；be linked to 与…有联系；consider sb/sth to be/as…认为某人是…句意：连接东南亚好几个国家的湄公河被认为在地区中将会起重要作用。