In 371bc, Sparta invaded Thebes but lost the war. Next year Thebes invaded the Peloponnesus. They first took Messenia, the source of Spartan wealth, and then conquered Sparta, destroyed its military power. Sparta never recovered and Thebes filled the power vacuum left by Sparta. （ ） A:对 B:错 答案: 对 第三章 单元测试