语法与词汇 To break thick ice, an icebreaker boat moves fast enough to ride up on the ice, ____ under its weight.
【正确答案】 C
【答案解析】答案:C 分析:空格处为定语从句. C为正确答案 翻译参考:为了打破厚厚的冰块,破冰船以足够速度前进以向上拱开冰块,然后冰块在它的重力下就破碎了。