阿摩線上測驗
33. Which does the word “bipedal” in the third paragraph mean?
(A) Moving on four feet
(B) Moving on both feet
(C) Working with both hands
(D) Kneeling down on both knees
答案：登入後查看
統計： A(4), B(220), C(5), D(2), E(0) #3224954
統計： A(4), B(220), C(5), D(2), E(0) #3224954
