问题
选择题
Mr. Black told us that the only way to conquer English is to practice __________. [ ]
A. constantly
B. always
C. regularly
D. continually
答案
答案：A
搜题请搜索小程序“爱下问搜题”
Mr. Black told us that the only way to conquer English is to practice __________. [ ]
A. constantly
B. always
C. regularly
D. continually
答案：A
2SO3(g) △H＜0 。达到平衡时，只改变下列一个条件，平衡不发生移动的是：