问题补充:
单选题_____hisknowledgeofthemountainouscountry,JohnSmithwasappointedasourguide.A.In spite ofB.On account ofC.Regardless ofD.Instead of
答案:
B解析on account of(=because of)由于,因为。regardless of(=without worrying about)不顾;Regardless of danger, he climbed the tower.