阿摩線上測驗
113.
Our company invests heavily in research and development to _____ the competition and bring new products to market.
(A)stay ahead of
(B)set the pace in
(C)fall behind in
(D)catch sight of
答案：登入後查看
統計： A(272), B(29), C(6), D(27), E(0) #3083495
統計： A(272), B(29), C(6), D(27), E(0) #3083495
