专升本考试(计算机文化基础)单项选择题每日一练(2018.12.28)

A. .htm
B. .txt
C. .exe
D. .bas

A. Shift
B. Alt
C. Ctrl
D. Ctrl+Shift

A.Ctrl+F3
B.Ctrl+F4
C.Alt+F3
D.Alt+F4

A.12345678.TXT
B.123456~1.TXT
C.1234561.TXT
D.123451.TXT

A. Ctrl+A
B. Ctrl+X
C. Ctrl+C
D. Ctrl+V