【简答题】如果a≠0且a、b互为相反数,则在下列各组数中不是互为相反数的一组是( ) A. 3 a 与 3 b B. a 2 与 b 2 C.3a与3b D.a+1与b-1
【单选题】We are glad to see consumers have made an encouraging _________ to our new products. [ ]
【单选题】Some of our industrial products have been said advanced level.
【单选题】We might say our products have ______ warm reception everywhere and hope they will be able to your requirements.
【单选题】—Perhaps you have heard our products. Would you like to know something more? —_________________
B.
I don’t need anything.
C.
I‘ve heard lot about you.
【单选题】The market competition is fierce, but our products have great advantage ______ quality and price.