A:允许土地买卖
B:废藩置县
C:加强中央集权
D:文明开化
某些化学键的键能(kJ/mol)如下表所示:
键
H—H
Br—Br
I—I
Cl—Cl
H—Cl
H—I
H—Br
键能
436.0
193.7
152.7
242.7
431.8
298.7
366
Name
Favorite sport
How often
Favorite player
Dream
Jack
football
often
Ronaldo
scientist
Steve
swimming
twice a week
Sun Yang
great swimmer
Marry
tennis
every day
Li Na
dancer