已知xa=3,xb=5,则x3a-2b=______.
∵xa=3,xb=5,
∴x3a-2b=(xa)3÷(xb)2,
=33÷52,
=2725.
故填2725.
Some of the objectives of the Grammar-Translation Method are() and to train a better understanding of the first language.
A. to help students read literature
B. to make students exercise move
C. to provide students with good mental exercise
D. to have learners listen and speak more
行政机关向相对方收取公路养路费、港口建设费的行为在性质上属于()。
A.行政处罚
B.行政征购
C.行政征收
D.行政征用