In 1989 the Berlin Wall was breached, and in 1990 East and West

In 1989 the Berlin Wall was breached, and in 1990 East and West Germany were reunited after nearly ______ years.
A、45
B、46
C、44
D、47
【正确答案】：A
【题目解析】：In 1989 the Berlin Wall was breached, and in 1990 East and West Germany were reunited after nearly 45 years.参见教材P225。