Last year in the country of Nerf imports equaled exports. Nerf's GDP was $500 million, its consumer expenditure was $380 million, and its investment was $20 million. Nerf's government expenditure on goods and services were ________.
选项:
A:$100 million
B:$900 million
C:$500 million
D:zero
发布时间:2024-04-14 22:28:34