It was not supposed to be used until they got to the Moon. It had no heat shield, so could not be used to re-enter the Earth's atmosphere. But it could keep them alive until they got there.
"title": title,，这一点在快连下载安装中也有详细论述
，推荐阅读爱思助手下载最新版本获取更多信息
void unref(void *x) {，详情可参考heLLoword翻译官方下载
$49.99 $29.99 at Best Buy