题型:问答题 简答题 This is the first time that we ____________a film in the newly-built cinema together.A.seeB.had seenC.sawD.have seen 查看答案
题型:问答题 简答题 定义新运算:3△2=3+33=36,2△3=2+22+222=246,1△4=1+11+111+1111=1234。则8△6的值为( )。A.886728 B.986720 C.986725 D.987648 查看答案