题目

There is only one ticket for both of us. ______ you ______ I can go into the door. A.Either, or      B.Neither, nor      C.Both, and      D.Not only, but also 答案：A18．直接写出得数．2.7+23=99÷100=2.5×3.5×0.4=$\frac{7}{8}$÷$\frac{7}{10}$=5.4-180%=2.8-$\frac{4}{7}$+1.2=