（ ）is believing.

单选题

（ ）is believing.

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单选题

Our father often told us in the past that( ) is believing.

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材料题

re. There are now a lot of wrong ideas about the laws of nature, of which this is one of the most incorrect and fateful(致命的). Political beliefs have been based upon it with results that have come near to destroying human civilization. The theory that war is a biological necessity, that it is nature′s method of controlling population and believing in the survival(生存) of the strong and the elimination(灭亡) of the weak,is totally wrong and insupportable. Within the last century, when wars have been

答案解析

材料题

re. There are now a lot of wrong ideas about the laws of nature, of which this is one of the most incorrect and fateful(致命的). Political beliefs have been based upon it with results that have come near to destroying human civilization. The theory that war is a biological necessity, that it is nature′s method of controlling population and believing in the survival(生存) of the strong and the elimination(灭亡) of the weak,is totally wrong and insupportable. Within the last century, when wars have been

答案解析

判断题

IS型是后开式泵。

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