問題詳情

【題組】5. Some countries have tired to jump-start the market of heat pumps by_________.
(A)upgrading the equipment
(B)encouraging investments
(C) implementing high-tech
(D) providing subsidies

參考答案

答案：D
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)