我国能源结构调整力度加大，( )取得成就。
A．“上大压小” B．“上行下效” C．“按部就班” D．“循序渐进”
参考答案：A
---- I am going to Shanghai for a holiday.
---- _________ .
A．Goodbye.
B．Have a good time.
C．Please go slowly.
D．Welcome back.
若函数y=mxm2+3m-1是反比例函数，求m的值．
