With the development of high technology, more and more new things _______ to the field of IT．

A．have introduced

B．are being introduced

C．were introduced

D．had been introduced

读下图回答1—2题。

1、近百年来，图示区域冰川面积快速减少的主要原因是 [ ]

A、温室气体增加

B、太阳辐射增强

C、臭氧空洞扩大

D、酸雨危害严重

2、当甲地一年中雪线最低时候 [ ]

A、巴西高原正值干季草木枯黄

B、北印度洋的洋流呈顺时针流动

C、美国北部森林内地面光照为最强的季节

D、澳大利亚东南牧场牧民正忙于剪羊毛