Non-tariff measures, such as ___ standards for manufactured and agricultural goods, can have a significant impact on trade - possibly even more than tariffs.
Aregulatory正確答案
Bflexible
Cvoluntary
Dsupplementary
答案與詳解
regulatory standards 意為「法規性/強制性標準」,是各國設定的技術性貿易障礙 (TBT),如產品安全、衛生、環保規範,屬最典型的非關稅措施。
