单选题
Geologists, __ some nongeologists, believe that knowledge of the concepts of geology can help to find petroleum.
【正确答案】
B
【答案解析】和某些非地质学家形成对照，地质学家相信。。。。
in reply to 答复in contrast to 和...形成对比［对照］
in proportion to adv.与...成比例 in relation to adv.关于, 涉及, 与…相比