China has recently its waters controls near the Diaoyu Islands to prevent Chinese fishing boats from in the East China Sea．
A. show up; attacking
B. taken up; having attacked
C. stepped up; being attacked
D. picked up; having been attacked
网友回答
A. show up; attacking
B. taken up; having attacked
(答案→)C. stepped up; being attacked
D. picked up; having been attacked
解析：考查词组：A. show up出现B. taken up从事，占据C. stepped up加紧D. picked up收听，捡起，习得，恢复，第一空填stepped up ，第二空考查prevent sb from doing阻止某人做…, Chinese fishing boats he attack是被动关系，用不定式的进行式。being attacked，句意：中国最近加紧在钓鱼岛附近水域的控制，为了防止在中国东海中国渔船被袭击。选C。