(28)h di()m zh()n hn()xing tng()qun tu()shui jio()fng s()xio tng()chn du()(4)()()()()()()()()()(1)ABCD(6)()()()()()()()()()()()()1(ABAC)_2()_3()_(4)1()2()3()4()(4)1()_2()_3()_4()_(22)(8)1_2_()_3_(10)1_2_3_(4)_(50)(10)1(2)_2 _ _(2)3(2)_4(4)(1)_(2)(2)_(2)(15)()1_(2)2()(4)ABC D3()(6)4.(3)_(25)C1.231.2.3.4.1.2341.23()()1.23 120 2 1.234(1)(2)1.2.CADB34
