分类：教育/科学-学习帮助
问题：单选45.Politicallythesenationstend 
45.  Polically these nations tend to be ________, with very high birth rates but poor education and very low levels of literacy.A) unstableB) reluctantC) rationalD) unsteady答案是A
回答：45. Politically these nations tend to be ___A_____, with very high birth rates but poor education and very low levels of literacy. 
A) unstable 
B) reluctant 
C) rational 
D) unsteady 

unstable：不稳定的
reluctant：不情愿的
rational：理性的
unsteady：不稳固的：主要指“物体”,如桌子不稳定，不稳固




供参考