Features such as Pilot Assist exist in what is called the" mushy middle of automation, "carmakers still require human drivers to pay attention.

1. Features such as Pilot Assist exist in what is called the" mushy middle of automation, "carmakers still require human drivers to pay attention.

【考点】

关系副词引导定语从句的用法; 非限制性定语从句;

【答案】

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语法填空（单句）普通

翻译困难