问题
单项选择题
除“五保”供养制度和农村合作医疗两项正式的社会保障制度外，我国农村还建立了针对农村入伍军人及其家属的（）。
A.养老保险制度
B.失业保险制度
C.医疗保险制度
D.优抚保障制度
答案
参考答案：D
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除“五保”供养制度和农村合作医疗两项正式的社会保障制度外，我国农村还建立了针对农村入伍军人及其家属的（）。
A.养老保险制度
B.失业保险制度
C.医疗保险制度
D.优抚保障制度
参考答案：D
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| We know that trees are useful in our everyday life. They 1 us many things, such as wood, oxygen, rubber, medicines and many other things. They can 2 tell us a lot about our climate. The following are the reasons. If you 3 a tree, you can see that it has many rings (年轮). Most trees grow one new ring 4 year. Because of this reason, we know 5 a tree is. A tree over a hundred years old means that it has more than a hundred 6 . When the climate is dry or very cold, the trees do not grow very much and their rings are usually 7 . When it is wet and warm, the rings are much thicker. If the rings are suddenly very thin or suddenly very thick, this means that the 8 changed suddenly. If we look at the rings of this tree, we can 9 about the climate for a hundred years. We can see 10 our climate is changing today. | ||||
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