数学其实是思维训练。微积分本身不重要。小孩学的不光是数学。美国普通学生的数学能力差，的确影响思维。
WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.
Copyright ©1998-2025 wenxuecity.com All rights reserved. Privacy Statement & Terms of Use & User Privacy Protection Policy
