問題詳情

21.The________robot can be programmed to perform a lot of household tasks. Better yet, it can recharge itself.
(A) impaired
(B) sophisticated
(C) detectable
(D) avoidable

參考答案

答案：B
難度：非常困難0
統計：A(0),B(0),C(0),D(0),E(0)