单选题 The giraffe survives in part because it can reach the vegetation in the high branches of trees where other animals ______.
A. are to touch B. have not grazed
C. can reach D. have not been browsed

【正确答案】 B
【答案解析】[考点] 动词辨析
[解析] 长颈鹿能够生存的部分原因是它能够到树枝高处的植物，而其他动物则吃不到。B项“吃不到”符合题意。