卷一阅读：
47 D difficulties
48 K literacy
49 M likely
50 O makes
51 B senior
52 N further
53L analysis
54H available
55 F collected
56 E category
57 A the economy
58 D change as
59 C protect60 B face
61 A British62 D a self
63C a certain
64C take an
65B less sure
66A will influence