题干
一、单项选择（共15小题；每小题1.0分，满分15分）
In ____ 1980s, great changes have taken place in ____ China.
A：/; the
B：the; /
C：a; /
D：the; the
答案(点此获取答案解析）
B
A：/; the
B：the; /
C：a; /
D：the; the
