The country has already sent up three unmanned spacecraft,the most recent at the end of lastMarch.A.has beenlaunched B.having been launchedC.beinglaunched D.to be launched我的问题是,这里直接用launched可不可以?为什么

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The country has already sent up three unmanned spacecraft,the most recent at the end of lastMarch.A.has beenlaunched B.having been launchedC.beinglaunched D.to be launched我的问题是,这里直接用launched可不可以?为什么
The country has already sent up three unmanned spacecraft,the most recent at the end of lastMarch.
A.has beenlaunched B.having been launched
C.beinglaunched D.to be launched
我的问题是,这里直接用launched可不可以?为什么要用现在分词的被动,而不能直接用过去分词?

The country has already sent up three unmanned spacecraft,the most recent at the end of lastMarch.A.has beenlaunched B.having been launchedC.beinglaunched D.to be launched我的问题是,这里直接用launched可不可以?为什么
B.having been launched
可以!
由于即表被动又表完成,也可以用过去分词和前面一起组成【独立主格结构】
请在客户端右上角评价点“满意”即可,

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