事实上，自适应巡航功能在自动驾驶定义中仅属于最初级的L1级，目前车企广泛搭载的所谓智驾系统则属于L2级——除了自动调节驾驶速度，还能够根据导航提示调节方向盘——让驾驶员的双手也可以放松。
Number (2): Everything in this space must add up to 2. The answer is 2-1, placed horizontally; 1-4, placed vertically.
。51吃瓜对此有专业解读
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Sometimes it takes a long time before I figure out what I actually want to write, and then everything falls into place: