单选题 The United Nation Law of the Sea Conference would soon produce an ocean-mining treaty following its______declaration in 1970 that oceans were the heritage of mankind.
A. unanimous B. abstract C. autonomous D. almighty

【正确答案】 A
【答案解析】[解析] 四个选项的意思分别是：unanimous“意见一致的”；abstract“观念的，抽象的”； autonomous“自治的，自发的”；almighty“全能的，非常的”。根据句意可知，应选择A。