问题
选择题
— Dad, I got a high mark in the exam.
— ! [ ]
A. Don't be so happy
B. Good luck
C. All right
D. Well done
答案
答案：D
搜题请搜索小程序“爱下问搜题”
— Dad, I got a high mark in the exam.
— ! [ ]
A. Don't be so happy
B. Good luck
C. All right
D. Well done
答案：D
HBr+HBrO当加入NaOH溶液后颜色变浅
平衡体系增加压强使颜色变深
，△H＜0 为使氨的产率提高，理论上应采取低温高压的措施