. Unluckily I don’t have a lot of ______ memories of my childhood. There were no good friends, no amazing adventures, and no wonderful holidays.

A．persuasive

B．ordinary

C．fantastic

D．honorable

下列山脉属东北-西南走向的一组是（　　）

A．天山-阴山

B．大兴安岭-太行山

C．祁连山-横断山脉

D．喜玛拉雅马脉