China"s average tariff level has dropped to 5% now as the country fulfills its commitments to the WTO.

China"s average tariff level has dropped to 5% now as the country fulfills its commitments to the WTO.
A、output
B、employment
C、salary
D、tax
正确答案：D

China&quot;s average tariff level has dropped to 5% now as the country fulfills its commitments to the WTO.