A：耦犁
B：曲辕犁
C：耧车
D：大镰
Some sports that were part of the Olympics in the past have been removed to __________ new sports which are more popular.
chuán jiǎng
shù shāo
mào shèng
jiū zhèng
____
CO（g）+H2O（g） ⇌催化剂 CO2（g）+H2（g），其化学平衡常数K和温度t的关系如表：
t℃
700
800
830
1000
1200
K
1.7
1.1
1.0
0.6
0.4
回答下列问题：
根据探究“唾液对淀粉的消化实验”完成下列练习
