// 步骤1：计算每辆车的到达时间（精确浮点数，禁止取整）
Not far from their minds is the reality that China is also attempting to land its own crew on the moon before 2030 and may be able to get there before the United States. NASA hasn't sent humans to the lunar surface since Apollo 17 in 1972. And though no other nation has followed in the giant leap for humankind, that won't always be true.
。业内人士推荐51吃瓜作为进阶阅读
她时常提起自己的母亲、我的外婆有多么重视围炉，会为此连续几个清晨早起赶去菜市场，只为买到最新鲜的食材、最紧俏的部位。外婆有一手好厨艺，我妈记忆中，在物资匮乏的儿时，每年最期待的就是这一顿盛宴。
（一）未经批准，安装、使用电网的，或者安装、使用电网不符合安全规定的；