Aluminum alloy is light and strong, so that it is widely used in aircraft manufacturing industry.
选项:
A:Steel is light and strong, so that it is widely used in aircraft manufacturing industry.
B:Aluminum alloy is light and strong, therefore it is widely used in aircraft manufacturing industry
C:Aluminum alloy is light and strong, so that seldom used in aircraft manufacturing industry
发布时间:2024-05-12 06:32:43