①增强民族凝聚力,唤醒民族忧患意识 ②牢记仇恨,肩负振兴中华的使命
③悼念死难者,维护世界格局不变 ④捍卫人类尊严,维护世界和平
A:①②
B:②③
C:①④
D:③④
“文化大革命”结束的标志是( )
—What were your parents doing when you phoned me last night?—They ________with my grandparents.
There are fewer and fewer tigers in India. The situation will continue ______ humans stop hunting them for their fur and bones.
地球上最大的生态系统是( )
根据实验所得数据,下列说法不正确的是( )