下列表询问原因的问句有
A. How did you take...?
B. What dose the woman think about...?
C. What is the reason for...?
D. Why can't the boy ... ?
下列可以表示“工作经历”的是?
A. employment history
B. work experience
C. work history
D. occupational history
设a=3,b=4,c=5,表达式:!(a>b)&&!c的值是( )。(填1或0)
设a=3,b=4,c=5,逻辑表达式:a||b+c&&b-c的值是( )。(填1或0)