Question

【题目】The roots of a plant grow _________the stem.

A. at the top of B. in the bottom of

C. in the middle of D. at the beginning of

Answer 1

【答案】B

【解析】

试题分析：句意：植物的根生长在茎的底部。at the top of：在…的顶端；in the bottom of：在……底部；in the middle of：在……中间；at the beginning of：在……起始。结合句意和语境可知选B。