______ widespread belief, cockroaches (蟑螂) would not take over the world if there were no one around to step on them.
【正确答案】 D
【答案解析】解析:本题的考点是介词短语的固定搭配。A意为“考虑到,由于”,B意为“多亏”,C意为“如果,万一”,D意为“与……相反”。根据上下文,选项D为正确答案。