填空题

A—telephone operator B—extension telephone
C—direct dial telephone D—urgent call
E—wake-up call F—long-distance call
G—local call H—suburban telephone
I—international radio telephone J—outside line
K—hold up L—cancellation fee
M—minimum charge N—person to person call
O—gets through P—courtesy phone
( )长途电话 ( )国际无线电话