题目内容：
根据下列材料，请回答题A—the first opium war H—the first chief executive
B—the Sino-British joint declaration I—free trade policy
C—the Kowloon peninsula J—the outcome of elections
D—the executive council K—state visit
E—diplomatic practice L—cultural secretary
F—embassy M—a high degree of autonomy
G—Hong Kong Special Administration Region N—the legislative council
O—economic system
Examples：(A)第一次鸦片战争 (K)国事访问
（ ）经济体制 （ ）自由贸易政策
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