eng
competition

Text Practice Mode

testhoahoc

created Yesterday, 11:15 by Cao Hoàng Phúc


1


Rating

24 words
141 completed
00:00
Trong cùng điều kiện xác định, phản ứng xảy ra theo hai chiều trái ngược nhau được gọi là phản ứng thuận nghịch.   

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