大全test7-20

colacat

Hong Kong is useful to China——>Hong Kong can retain its capitalist ways after 1997;

Hong Kong is prosperous——>Hong Kong is useful to China;

HK retains its capitalist ways (now 即before 1997)——>Hong Kong is prosperous

所以 HK retains its capitalist ways b4 1997——> Hong Kong can retain its capitalist ways after 1997

colacat

feifei的注释是，这道题目是在1997年以前出的，所以时间的出发点不一样

mm再理解一下