【简答题】If you order before 15th April, (it's not necessary) for you to pay until August.If you order before 15th April, you ___________________________________
【单选题】对于下列Test.java下列哪个叙述是正确的? public class Test { public static void main (String args[ ]) { int m = 10, n = 20; if(n>m) System.out.print("hello"); System.out.print("你好"); else System.out.print("ok"); Syst...
【简答题】The book is optional. My professor said we could read it if we needed extra credit. But we ______ read it if we don't want to. (can't/ don't have to/mustn't)