题目

第二节、完形填空（共20小题，每小题1.5分,共30分）     A young British woman had shortly arrived in Hong Kong and had not yet 36 anything about the Chinese 37 . One day she went to the home of a Chinese friend and was 38 given a cup of Chinese tea .She was not 39 and she also found this type of tea rather40.however,since she had been given the 41 ,she felt she should 42 it .Hoping to finish it 43 so that she would not feel about having to drink this tea which she did not 44 ,she started to drink as much of 45 as she could .But 46 her cup became half-full,the host(主已知集合，，若B⊆A，求实数m组成的集合．