题目选项分析

Until the time of Cantor's work on set theory in the 1870s, no serious mathematician anywhere in the world, not even the giants in the field, such as Leonard Euler and Karl Gauss, was able to appreciate that infinity can be studied with rigorous precision.

Until the time of Cantor's work on set theory in the 1870s, no serious mathematician anywhere in the world, even the giants in the field, such as Leonard Euler and Karl Gauss, were not able to appreciate that infinity can be studied with rigorous precision.