问答题 《复合题被拆开情况》 A—Bank guarantee J —Total value B—Customs duties K —Trade statistics C—Net price L —Sales representative D—Stamp duty M—Current price E—Direct tax N —International market price F—Risk management O —Export license G—Country of origin P —Joint venture H—Supply chain Q —Market survey I—Retail price Examples: (D) 印花税 (K) 贸易统计《问题》：( )市场调查 ( )供应链