单项选择题3. We may want to live a quiet and peaceful life. ________, today's world is a highly competitive and a quickly developing world. A、A. Thus B、B. Nevertheless C、C. But D、D. Additionall
单项选择题你船在海上航行，用真运动雷达测得270度左右海浪回波最弱，则当时的风向约为90°。 A、正确 B、错误
