单选题
"The horizons of science have expanded" means that ______.
A、
the horizon changes its size from year to year
B、
science has developed more fields of endeavor
C、
scientists have made great progress in studying the horizon
D、
scientists can see further out into space
【正确答案】
B
【答案解析】
句子的意思是“科学领域得到拓展，即研究的范围更加宽广”，选项B意思符合。
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