老年人不要吃得过饱，吃得过饱可引发：（）。
A.高血脂
B.冠心病
C.糖尿病
D.老花眼
参考答案：A, B, C
Not only the parents but also James ____ London.They will come back in a month. [ ]
A. has been to
B. have been to
C. has gone to
D. have gone to
专业规划，是指防洪、治涝、灌溉、航运、供水、水力发电、竹木流放、渔业、（）、水土保持、防沙治沙、节约用水等规划。
A、水资源保护
B、水体保护
C、水域保护
