要在屏上出现正的“F”字,则幻灯片的正确的放置方法是 [ ]
A.
B.
C.
D.
答案:C
A.E=,m=0
B.E=,m=
C.E=,m=0
D.E=,m=
Don’t ________ when he is telling the story.
A.break up
B.break down
C.break off
D.break in