为防止发生洪水漫溢险情，应（）。
A.固基护脚
B.帮宽堤防
C.截渗排水
D.迅速抢筑子堤
参考答案：D
The expert advised the boy, who always fails to remember the new words, to __________ an effective
way of learning vocabulary. [ ]
A. admire
B. design
C. adopt
D. invent
船舶的英制水尺两数字之间的距离是（）。
A.3in
B.6in
C.9in
D.12in
