問題詳情

15. For older people, doing exercises in swimming pools is especially helpful _____ the buoyant effect of water.
(A) because of
(B) because
(C) for
(D) since

參考答案

答案：A
難度：適中0.633
書單：沒有書單，新增

用户評論

【我要上台銀】評論

because是「連接詞」，後面會連接........