教甄教程◆英文題庫下載題庫

上一題
19. A hot air balloon will rise when its density is ____ of the surrounding air.
(A) the lower density
(B) lower than that
(C) than the lower density
(D) the density is lower than
編輯私有筆記
答案:B
難度:簡單
最佳解!
Jiarong 高三上 (2011/10/23 05:16)
背:more than .....看完整詳解
2F
金榜題名 大三下 (2012/10/15 00:22)
hot air balloon 熱氣球
density稠密(度)
surrounding 環境; 周圍的事物