假设x=13，y=4，则表达式x%y != 0的值是______，其数据类型是______。
参考答案：true boolean
--- I haven’t got the reference book yet, but I will have a test on the subject next month.
--- Don’t worry. You ________ have it by Thursday.
A．could
B．may
C．shall
D．must
小茴香所含的挥发油称为茴香油。（）
