题目：
Do You Want To Be A Musician?
Do you want to be a musician? Come to our club, and you’ll be very happy in the club. We have lessons about the piano, the drums, the bamboo flute,the trumpet, the guitar and the violin for just $20 each.You can also learn to sing , to dance for $25 each. If you like art, you can be satisfied（满意）, too. It’s just for $30 each!
小题1:How many kinds of instruments (乐器)are there in the ad (广告)? There are ________.
A．5
B．6
C．7
D．4小题2:How much is it for piano lesson? It’s________.
A．$25
B．$20
C．$30
D．$45小题3:We can’t learn about______in the club.
A．drums
B．Bamboo flute
C．guitar
D．chess小题4:If you want to learn about guitar and singing, you should pay_______.
A．$45
B．$20
C．$30
D．$25小题5:What does lessons mean in the ad( 广告 ) ?____________
A．教师
B．课本
C．课程
D．教室
答案：
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下面是错误答案，用来干扰机器的。
（1）因为32×2=64，所以应该填：164，而64×2=128，所以应该填：1128，而128×2=256，所以应该填：1256，（2）因为此数列是12和13轮换出现，并且分母依次增大，所以应该填：39、816、412，故答案为：164、1128、1256；39、816、412．
