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【单选题】
下面关于CSS的说法错误的是A.
CSS可以控制网页背景图片
B.
margin属性的属性值可以是百分比
C.
整个body可以作为一个盒子
D.
对于中文可以使用word-spacing属性对字间距进行调整
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【单选题】Why does the man like doing extreme sports?
A.
He is not afraid of getting hurt.
B.
Extreme sports are competitive sports.
C.
He thinks extreme sports are interesting
D.
He thinks his life is boring.
【单选题】How can people reduce the level of danger when doing extreme sports?
A.
Reduce the times of doing extreme sports.
B.
Wear safety equipment.
C.
Do extreme sports with other people.
【单选题】Some extreme sports ______.
A.
cost a lot of money,
B.
belong in the category of popular sports.
C.
waste your time.
D.
are forbidden.
【简答题】系统设计的五个指标是可靠性、工作质量、________、工作效率和经济性。
【多选题】Extreme sports are also called ( ).
A.
action sports
B.
active sports
C.
adventure sports
D.
air sports
【简答题】Sure，you’ve watched extreme pet sports on Animal Planet. But did you know that there’s a whole world of athletic activities for dogs right in our area? There are some reasons for considering taking pa...
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