题目

Mr. Glen is a millionaire. Five years ago, after returning from abroad to his motherland, he  36  his small company. Speaking of success, Glen often tells us a story about his extra expensive “school” fee. He always  37  his success to it. At that time, Glen, who already got a Ph.D. degree,  38  to return to the homeland, starting a company. Before leaving, he bought a Rolex watch with the  39  made through years of work after school and the scholarships. At the airport he had to accept the  40  customs check. The watch on his wrist was also demanded to be taken down for如图甲、乙两组装置中，经数小时后U形管B处的液面会出现的情况是(实验装置中的氧气足以维持实验期间小白鼠的生命活动，瓶口密封，忽略水蒸气和温度变化对实验结果的影响) A.甲组上升、乙组不变                     B.甲组下降、乙组不变 C.甲组不变、乙组上升                     D.甲组不变、乙组不变