Can you imagine what difficulty people had this year ________ against the severe natural disasters?

A．fighting

B．to fight

C．fought

D．Fight

任何国家都不得以任何方式强迫他国接受自己国家的意志。这一主张是基于主权国家的

A．独立权

B．平等权

C．自卫权

D．管辖权