The two parties that have held power in Britain since 1945 are _

The two parties that have held power in Britain since 1945 are ___________ .
A、the Democratic Party and the Republican Party
B、the Conservative Party and the Labor Party
C、the Labor Party and the Social Democratic Party
D、the Labor Party and the Democratic Party
【正确答案】:B
【题目解析】:自1945年以来一直在英国执政的两个政党是保守党和工党。