判断题 行星齿轮机构中多片离合器的作用就是接通和切断动力。（） 正确 错误

判断题 During the Qing Dynasty, music was denounced as a wasteful past-time; almost all musical books, instruments, and manuscripts were ordered destroyed. （ ）

判断题 卫生间、厨房是使用面积。