不定项选择

赫罗图反映了恒星光度与光谱的变化。

A．错误
B．正确

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单项选择题

出售无形资产所有权时，所收价款高于账面价值的差额应记入( )账户。

Fill in the blank with the correct form of the verb in the brackets.
That was the second time that I _____ (be) there.

答案： have been