单项选择题

We can infer from the text that "computer literal" means ______.

A．being able to afford a computer
B．being able to write computer programs
C．working with the computer and finding out its value
D．understanding the computer and knowing how to use it

<上一题目录下一题>

热门试题

单项选择题

The underlined word they in the last sentence of the first paragraph refers to

A．birds and parasites
B．birds and sheep
C．parasites and sheep
D．sheep, birds and parasites

单项选择题

We learn from the text that corals depend on plants for

A．comfort
B．light
C．food
D．oxygen