A:慈禧生活俭朴
B:中国不需要汽车
C:中国汽车依赖进口
D:封建观念阻碍近代化
13=12
13+23=32
13+23+33=62
13+23+33+43=102…
I have no ____(替换,可供选择的) but to report him to the police.