A.4 B.5 C.6 D.3
A.每次按回車(chē)鍵 B.按Tab鍵 C.一行文字輸入完畢并回車(chē) D.文字輸入超過(guò)右邊界
A.兩端對(duì)齊B.居中C.左對(duì)齊D.右對(duì)齊