【評論主題】15. The river behind the trees _____ clean then. My friend and I always _____ there.(A) is; swimmed
【評論內容】因為第一句話結尾有then,代表是過去的★★...
【評論主題】9. Hank: _____ Jerry play basketball in the park this afternoon? Judy: Yes, he _____.(A) Was; was (
【評論內容】A) Was + VingC) Can; ☆☆☆ / ☆☆☆; ...
【評論主題】40.如右圖所示,斜面長 4 m、高 2 m,沿斜面方向施力 60 牛頓,將 5 公斤重的物體,在 10 秒內自底部等速推至頂端,請問在這段期間,施力對物體所作的功率為多少瓦特?(g=10 m/s2)
【評論內容】功率=功/時間( P = W / t )★=★★*...