8. Though numerous efforts have been made to improve vehicle passenger safety, no similar effort
to protect _____ has been initiated.
(A) pediatrics
(B) pedestrians
(C) tripods
(D) pedestals
答案:登入後查看
統計: A(7), B(309), C(1), D(9), E(0) #3224929
統計: A(7), B(309), C(1), D(9), E(0) #3224929