单选题 One day two scientists were quarrelling about whose watch was better, the German one or the Japanese one. Since they were scientists, they decided to do an experiment to test the watches. They went into their lab and filled a basin with water, put the watches in, waited for 20 minutes and took them out.
They could see there was something wrong with both watches. They observed them for several hours before speaking to each other. They both silently found that the German watch was losing 60 minutes and the Japanese are doubled that.
The scientist with the Japanese watch then slowly raised his head and said, "Both watch are out of work, but my watch is right more often than yours, so it's better." The scientist with the German watch went home without saying a word.

单选题 The two scientists were quarrelling at the beginning of the story, because ______.
【正确答案】 C
【答案解析】[考点] 细节题
[解析] 从文章第一段第一句得知：两位科学家争论的原因是他们都认为自己的于表比对方的好。
单选题 They did an experiment because they ______.
【正确答案】 A
【答案解析】[考点] 细节题
[解析] 从文章第一段第二句得知：他们都是科学家，所以他们决定以做实验的方法来测定的表更好。
单选题 After they did the experiments, they found ______.
【正确答案】 B
【答案解析】[考点] 细节题
[解析] 从文章第二段第一句They could see there was something wrong with both watches．得知，实验后两只表都不能确定准确时间了。
单选题 After putting the Japanese watch in water for 20 minutes, two scientists found ______.
【正确答案】 D
【答案解析】[考点] 推断题
[解析] 从文章第二段最后一句They both silently found that the German watch was losing 60 minutes and the Japanese are doubled that．得知，日本牌的手表慢了120分钟。
单选题 How about the German watch at last?
【正确答案】 D
【答案解析】[考点] 推断题
[解析] 从文章第二段看，德国牌的手表慢了60分钟，而日本牌的手表慢了120分钟，所以德国牌的手表比日本牌的手表更准确点。