六级The NASA Educational Launch of Nano Satellite program, which offers free launches for educational groups and science missions, is now open to nonprofit corporations as well.
美国国家航空航天局的纳米卫星教育发射计划为教育团体和科学任务提供免费发射,现在也向非营利公司开放。
2019.6六级真题第三套
未经许可,严禁转发。QQ交流群:688169419