要保护生物的多样性,必须禁止对生物资源的开发和利用。 [ ]
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脓液坏死组织多的创面用()
A.0.02%呋喃西林溶液
B.2%苯氧乙醇溶液
C.优琐溶液
D.3%氯化钠溶液
E.凡士林纱布
The duty-paying value shall be ().
A. the value of imports or exports declared by the consignors or consignees
B. the true transaction value of imports & exports
C. the value higher than the transaction value of identical or similar goods
D. the value lower than the transaction value of identical or similar goods