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- -a snack machine has buttons arranged as shown above if a

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a snack machine has buttons arranged as shown above if a selection is made by choosing a letter followed by a one-digit number,what is the greatest number of different selections that could be made?
答案是54,为什么 = =
- -a snack machine has buttons arranged as shown above if a
快餐机器按钮安排如上所示.如果一个选择是由选择一个字母,紧随其后的是一个一位数号码,则最多有几种选择?
6*9=54
7.As shown above,a ball of mass m,suspended on the end of a As is shown above,in the middle of the picture walks a man.是 英语翻译in the six pairs of letters shown above,if a is paired w The coat ( ) nice buttons.A.has B.have C.haves 请翻译 As shown in the following diagram,a rectangle has been d As has been said above,grammar is not a set of dead rules. In a word与as it has been said above有什么区别 in a room above/as (have been) said above have a snack The factory has bought a new machine if i have a time machine as has been mentioned above...