A—the first opium war B—the Sino-British joint declarationC—the Kowloon peninsula D—the executive councilE—diplomatic practice F—embassyG—Hong Kong Special Administration Region H—the first chief executiveI—free trade policy J—the outcome of electionsK—state visit L—cultural secretaryM—a high degree of autonomy N—the legislative councilO—economic systemExamples： (A)第一次鸦片战争 (K)国事访问