第23题: [单项选择]The purpose of a ______ is to cut down imports in order to protect domestic industry and workers from foreign competition. A. tax B. toll C. fee D. tariff 参考答案:D 答案解析:tax意为“税”,指要求人、团体或商店为支持政府而交纳的捐献物:toll意为“费用”,指获得某种特权所要交的固定费用或税款;fee意为“费用”,指为某项特权而征收的固定费用;tariff意为“关税”,