给下列词语中加线的字选择正确的解释。:~-B'W1O8Z0s
A、不安全 B、损害 C、端正 D、高:~-B'W1O8Z0s
①危峰兀立请选择ABCD+y,{1o:v8u+[,I)R,j)X8T-G:b1H,Q+w*b:~-B'W1O8Z0s
②U]危[/U]及生命请选择DCBA/X/{7H*@,j6X5C(v-b:~-B'W1O8Z0s
③居安思危请选择ABCD0N3E1E7a-L5d+h2C0c:~-B'W1O8Z0s
④ 襟危坐请选择DCBA1g1E0U.i:b)G4t/u0S:~-B'W1O8Z0s