This is the best film ____ has been shown this year. [ ]
A. who
B. whom
C. that
答案:C
凭证挂失()日后、密码挂失()日后方可解挂。
A.三、一
B.五、三
C.七、五
D.七、三
缺页中断属于______,Ctrl+C中断属于______。