沼气是一种混合气体燃料,其主要成分是()。
A.乙烷
B.氦气
C.甲烷
D.氧气
第1题
The(67)controls the cursor or pointer on the screen and allows the user to access commands by pointing and clicking.
A.graphics
B.printer
C.program
D.mouse
第2题
The(67)controls the cursor or pointer on the screen and allows the user to access commands by pointing and clicking.
A.graphics
B.printer
C.program
D.mouse
第3题
A.graphics B.printer C.program D.mouse
第4题
The ______ controls a pointer On the screen .When you move it,?the pointer moves too.
A.menu
B.icon
C.mouse
D.click
第5题
A.a:visited: pointer
B.cursor: pointer
C.background-position: pointer
D.a:hover: pointer
第8题
Gary controls a small laser pointer by pressing the buttons,
A.Right
B.Wrong
C.Not mentioned
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