A.結(jié)構(gòu)安排應(yīng)當(dāng)做到完整勻稱B.結(jié)構(gòu)安排應(yīng)當(dāng)做到周嚴(yán)縝密C.結(jié)構(gòu)安排應(yīng)當(dāng)做到錯(cuò)綜變化