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发展林业是应对气候变化、固碳减排的重要途径。()

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危险源现有控制措施须从______、_____、_____、_____、____等五个方面进行考虑。

嘉奖令叙述事实要概括简洁,评价要恰如其分,实事求是。()

When two goods are complements, the cross elasticity of demand is:

A. positive, and for substitutes the cross elasticity of demand is negative
B. negative, and for substitutes the cross elasticity of demand is negative
C. negative, and for substitutes the cross elasticity of demand is positive

八二年版影视剧《西游记》中,导演错误地把北方桃当作了王母娘娘的蟠桃。()

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