問題詳情
20. When the New York Police Department acquired a robotic dog last year, officials heralded the_____ device as a futuristic tool that could go places that were too dangerous to send officers.
(A) fourth-legs
(B) four-legging
(C) fourth-leg
(D) four-legged
參考答案
答案：D
難度：簡單0.675
書單：沒有書單，新增
用户評論