Say the numbers What does each phone number mean?

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• Say the numbers What does each phone number mean?Say the numbers What does each phone number mean?的中文意思。
• 英语翻译1 in how many of integers between 1 and 100 does the digit 5 occur exactly once?A 10 B 18 C 19 D 20 E 21 为什么选B?2 What is the total number of different 5-digit numbers that contain all of the digis 2,3,4,7 and 9 and in which none of the odd digits occur next to each other?A 12 B 10 C 8 D 6 E 1 为什么选A?此题没读懂?3 the value of y will decrease as the value of x increases in which of the following equations?A y=x B y=x-2 C 2-y=3-x D 2x-y=4 E x+2y=1 为什么选E而不选
• - - 完形填空Christmas is the biggest holiday in the West.It falls __1__ December 25th.What does Christmas __2__ Christmas Day is the birthday of __3__.When Christ was born __4__ two thousand years ago,many __5__,rich and poor,gave him presents.__6__ today,people still do the same thing __7__ each other.Of course,everyone __8__ presents.I guess that is __9__ people of all __10__ like Christmas.( ) 1.A.in B.for C.at D.on( ) 2.A.mean B.say C.come from D.talk
• 几道英语化学题!1.how are the atomic numbers and the atomic masses of the elements related to how the elements are arranged on the periodic table?2.how does the number of electrons relate to the arrangement what is the different in the number of electrons in a 3rd period element and the 2nd period element above it?3.do some elements next to each other have the same number of neutrons?how is that possible?4.how are the colors arranged,and what coclusions can b
• Say the numbers What does each phone number mean?
• 关于雅思听力里的write one Word and/or a number for each answer
• 56-4x=3x 解方程