he is a good boy named tom 这是简单句么,不是主句加从句么?还有阿佛加德罗常数的单位为什么是mol的负一次,为什么不是mol/个么

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• he is a good boy named tom 这是简单句么,不是主句加从句么?还有阿佛加德罗常数的单位为什么是mol的负一次,为什么不是mol/个么
• he is a good boy named tom 这是简单句么,不是主句加从句么?还有阿佛加德罗常数的单位为什么是mol的负一次,为什么不是mol/个么
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