其实科学和工程,都是不断试错的过程。哪里有一帆风顺的事。哪个国家,哪个制度都可能发生。
其实科学和工程,都是不断试错的过程。哪里有一帆风顺的事。哪个国家,哪个制度都可能发生。
WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.
Copyright ©1998-2026 wenxuecity.com All rights reserved. Privacy Statement & Terms of Use & User Privacy Protection Policy