A.feature
B.quality
C.diagram
D.source
[单选题]Singing Alarms Could Save the Blind.If you cannot see,you may not be able t
[单选题]Singing Alarms Could Save the Blind.If you cannot see,you may not be able t
[单选题]Singing Alarms Could Save the Blind.If you cannot see,you may not be able t
[单选题]Singing Alarms Could Save the Blind.If you cannot see,you may not be able t
[单选题]Singing Alarms Could Save the Blind.If you cannot see,you may not be able t
[单选题]Singing Alarms Could Save the Blind.If you cannot see,you may not be able t
[单选题]Singing Alarms Could Save the Blind.If you cannot see,you may not be able t
[单选题]Singing Alarms Could Save the Blind.If you cannot see,you may not be able t
[单选题]Singing Alarms Could Save the Blind.If you cannot see,you may not be able t
[单选题]Singing Alarms Could Save the Blind.If you cannot see,you may not be able t