【单选题】Reading ______ the lines, this letter is really a request for money.
【单选题】某市在一次扶贫助残活动中,共捐款2580000元,将2580000用科学记数法表示为 [ ]
【单选题】( ) letter is used for praising a person on his success. This letter is a great gesture to maintain personal as well as professional relationships.
【单选题】某市在一次扶贫助残活动中,共捐款2580000元,将2580000用科学记数法表示为
【单选题】某市在一次扶贫助残活动中,共捐款2 580 000元.将2 580 000元用科学记数法表示为 [ ]
【单选题】This letter is for a / an ____.
【单选题】某市在一次扶贫助残活动中,共捐款2580000元.将2580000元用科学记数法表示为( )