题目adj.不用电线与电源相连的;无电线的;无塞绳式的A. circulateB. cordlessC. caretakerD. coreadj.不用电线与电源相连的;无电线的;无塞绳式的A. circulateB. cordlessC. caretakerD. core题目解答答案B. cordless