为防止红细胞对ACP测定的干扰,常加入下列何种抑制剂以提高检测的特异性()
A.苯丙氨酸
B.L-酒石酸
C.尿酸
D.EDTA
E.L-半胱氨酸
参考答案:B
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
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