1. She spoke to the manager, not the assistant.——这不是并列关系。后面not the assistant 仅起补充说明的作用。
2. He blamed the manager and hit the assistant.——这是并列谓语(并列的动宾结构)。
3. He blamed and hit the assistant. ——这是并列的谓语动词。
4. He blamed the manager and Tom hit the assistant.——这是并列句,并非并列谓语。