单选题 The shuttle exploded in the air suddenly and broke into ______ at once.
A. diversity B. fragments C. doctrine D. drought

【正确答案】 B

【答案解析】[解析] 本句说的是飞机在空中突然爆炸，裂成了碎片。fragments“碎片，断片”是正确的答案。如：She dropped the bowl on the floor and it broke into fragments．她把碗掉在地上，碗破成碎片。而diversity“差异，多样性”；doctrine“教条，学说”；drought“干旱，缺乏”与句意都不相符。