【单选题】to extend a 27128 for 8051, then the AB we need to use is( ).
【单选题】听力原文:When do we need to respond to the invitation? (A) It says as soon as possible. (B) I am invited there, too. (C) The party starts at 6 p. m. (17)
【简答题】Ruth is good at music.29. Ruth is good at music.
【单选题】To calculate radius of investigation,which two parameters' relationship we need to seek?
【简答题】Frank and Dale are friends.29. Frank and Dale are friends.