2025-05-02 18:49:19
精选答案
用a，例如：
1. He would rap his fingers on the desk when he had difficulty working out a math problem.他做数学题遇到困难时总是要敲书桌。
2.And originally it was a math problem more or less.最初它差不多只是一个数学问题的游戏。
3. Yes, but you have a math test tomorrow.京晶：是，但你明天有一个数学测验。
2025-05-02 18:49:19
其他答案
math的前面应该用a，在英文习惯中，a用在辅音开头（以发音为准，不是辅音字母）的单词前面，an用于以元音开头（以发音为准，不是元音字母v）的单词前面。例子有
a pen, a pig, a cat, a mouse , a farm, a pool, a guy, a man, a woman, a kid
an apple, an egg, an hour, an orange
