----- What is the price of petrol these days？

-----Oh, it ______ sharply since last month.

A．is raised

B．has risen

C．has arisen

D．is increased

下列山脉中，属于南北走向的是（　　）

A．横断山脉

B．阿尔泰山脉

C．武夷山

D．阴山