问题
选择题
Many plants could move northward and toward the Pacific coast_____ rising temperatures and changes in rainfall．
A．with regard to
B．in defense of
C．by means of
D．in reaction to
答案
答案：D
题目分析：句意：许多植物可能北移到太平洋沿岸以应对温度的上升和降水量的变化。with regard to关于；in defense of为保证；by means of借助于；in reaction to应对，选D。