问题描述:
Michelle Obama is the first African-American to assume the role of First Lady.
Michelle Obama is the first African-American to assume the role of First Lady.这句是简单句还是并列,复合?to assume the role of First Lady做什么成分
Michelle Obama is the first African-American to assume the role of First Lady.这句是简单句还是并列,复合?to assume the role of First Lady做什么成分
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