______granted by the federal government for inventions were at an annual average

游客2024-12-26 24

问题 ______granted by the federal government for inventions were at an annual average of 22,000, in the 1890s.

选项 A、Patents
B、Prize
C、Investment
D、Monopoly

答案 A

解析

转载请注明原文地址:https://www.tihaiku.com/zcyy/3885311.html

相关试题推荐

随机试题

最新回复(0)

TheBritishmonarchistheHeadofA、Parliament.B、States.C、Government.D、Cabine