题干
—Let's play computer games.
—That _________ good.
A：looks
B：watches
C：sounds
D：has
答案(点此获取答案解析）
C
—Let's play computer games.
—That _________ good.
A：looks
B：watches
C：sounds
D：has
”如下：
时， 
=
时，
的最大值等于（ ）