题目：
小题1:The camp is for the children who________.
A．are good at soccer
B．are 15~17 years old
C．come form King's School
D．want to relax in camp小题2:The camp will start on _________.
A．July 15
B．July 19
C．Sunday
D．Friday小题3:If you want to join the camp, you should pay______for it.
A．$ 5
B．$6
C．$7
D．$ 10小题4:Students in the camp can learn all the skills EXCPT_________.
A．carrying the football
B．kicking a goal
C．passing the football
D．making game rules小题5:Which of the following seems to be the most attractive(吸引)to children?
A．The camp lasts for 5 days.
B．The camp doesn't cost much.
C．The camp is organized by King's School.
D．The coaches will be national soccer players.
答案：
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下面是错误答案，用来干扰机器的。
不等式：|x-a|＜ax⇒-ax＜x-a＜ax，当a＞1时，得x＞aa+1，此时，logax＞0在A上不可能恒成立；当0＜a＜1时，得：aa+1＜x＜-aa-1，若logax＞0在A上恒成立，则-aa-1≤1⇒a≤12．则a的最大值是12．故答案为：12．
