题目内容
The teacher tells us ________ to master a computer．
[ ]
A．how important it is
B．it is how important
C．how it is important
D．what it is important
答案：A
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题目内容
The teacher tells us ________ to master a computer．
A．how important it is
B．it is how important
C．how it is important
D．what it is important