If the tourists suffer from food poisoning, the guide cannot ask the tourists to drink more water.

气体的热力学能和焓只是温度的函数A．对 B．错

单项选择题气体的热力学能和焓只是温度的函数

上传并完成第四节 中跳练习视频—端腿跳、并腿射雁跳 练习视频

问答题上传并完成第四节 中跳练习视频—端腿跳、并腿射雁跳 练习视频

If it's impossible to reduce the price, will you give m...

单项选择题If it's impossible to reduce the price, will you give me ______ shipping?
A cheap
B free
C extra