A.點(diǎn)B.線C.面D.體
A.有規(guī)律的重復(fù)B.無規(guī)律的重復(fù)C.等級(jí)性的重復(fù)D.無等級(jí)性的重復(fù)
A.明朗B.清晰C.活潑D.煩躁