小型网络的二进制IP地址以_____打头。
A．1010
B．1110
C．10
D．110
参考答案：D
If she ______ well in her exams, she will go to Beijing University in September.
A．did
B．does
C．is doing
D．will do
粗加工时，余量较大，为使切削省力，车刀应选择较大前角.
