问题
选择题
—What are the differences between the American and British __________ of government?
—You can find the answer on the Internet. [ ]
A. design
B. theory
C. system
D. mass
答案
答案：C
搜题请搜索小程序“爱下问搜题”
—What are the differences between the American and British __________ of government?
—You can find the answer on the Internet. [ ]
A. design
B. theory
C. system
D. mass
答案：C
2Z2 在反应过程中的反应速率（V）与时间（t）的关系曲线，下列叙述正确的是 