当x=-3时，mx3-nx+15的值是-5，则x=3时，这个代数式的值是（ ）．
35
—I’m so anxious about my driving test tomorrow. Would you please give me some advice?
—_____. I’m sure you are good enough to pass it. Be confident of yourself.
A．Absolutely
B．Take it easy
C．You are right
D．Not really
A．4对、3类线
B．2对、3类线
C．4对、5类线
D．2对、5类线
