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1.(广东省韶关市2006年)如图,两个滑轮组由每个质量相同的滑轮组成。用它们分别将重物G1、G2提高相同高度(忽略摩擦和绳重)。
1. (Shaoguan City, Guangdong Province, 2006) As shown in the figure, two pulley blocks consist of pulleys of the same quality. Use them to increase the weights G1, G2 respectively by the same height (ignoring friction and rope weight).