Which statement about the American political parties is NOT true?
A、In general，America has a two-party system.
B、The Constitution makes no provisions for political parties.
C、Political parties are the basis of the American political system.
D、The Democrats and the Republicans dominate politics only at the federal level.
【正确答案】：D
【题目解析】：美国的两个主要政党是民主党和共和党，控制着联邦、州和地方各级的政治。
